7KW Perkins Diesel Generator
1.Quick Delivery Time
2.Heart and Soul Service
3.Strict Quality Control
4.Competitive Price
Fuzhou Century Sea Co., Ltd
7KW Perkins Diesel Generator:
Sunday, September 11, 2011
7KW-120KW Perkins diesel generator set
1)7kw-120kw Perkins diesel generator set
2)Perkins OEM
3)CE & ISO Certificate.
4)1year or 1000hrs warranty
7KW-120KW UK Perkins diesel generator set
Genset
Model
Genset
Prime Power
Genset
Standby Power
Perkins
Engine
Engine
Max. Power
Stamford
Alternator
Alternator
Prime Power
KW/KVA
KW/KVA
Model
KW
Model
KVA
SGP-7
7/9
8/10
403D-11G
9.3
PI044E
10
SGP-10
10/13
11/14.5
403D-15G
13.3
PI044G
12.5
SGP-16
16/20
12/22
404D-22G
20.3
PI044H
17.5
SGP-24
24/30
26/33
1103A-33G
30.4
PI144G
30
SGP-36
36/45
40/50
1103A-33TG1
45.6
UCI 224D
50
SGP-48
48/60
53/66
1103A-33TG2
59.3
UCI 224E
60
SGP-52
52/65
57/72
1104A-44TG1
64.3
UCI 224F
72.5
SGP-64
64/80
70/88
1104A-44TG2
79.1
UCI 224G
85
SGP-72
72/90
79/99
1006TG1A
91.5
UCI 274C
100
SGP-80
80/100
88/110
1104C-44TAG2
100
UCI 274C
100
SGP-80
80/100
88/110
1104C-44TAG2
100
UCI 274C
100
SGP-110
110/138
121/152
1006TAG
137.5
UCI 274E
140
SGP-120
120/150
132/165
1006TAG2
178.8
UCI 274F
160
Sungold SGP series adopts UK Perkins engine,
Perkins.
is one of the world’s leading diesel engine manufactures since 1932, nearly 400,000 units for one year, quickly occupied the world market for the full specification, good structure, reliable performance, easy maintenance, low exhaust, long period maintenance. In the auto car, construction, agricultural, industrial and marine markets, major original equipment manufacture choose Perkins Engines because of its fuel, nature gas elding for reliable and durable use.
3.Supply Scope:
1.Standrad tool kits and complete operation/maintenance/spare parts manuals to Engine/Alternator
2.brand-new engine, w/ start motor.
3.brand new brushless alternator, single bearing, flange connection, IP23, H insulation class, with AVR.
4.auto control panel, with LCD display.
5.Engine mounted battery-charging alternator, Genset with battery charger of mains supply.
5.Circuit Breaker, Exhaust Silencer
6.Radiator for 40-50 ambient temperature and bouble-deck cooling, with fan guard and front guard
7.Anti-vibration pads are fixed between engine/alternator and base frame, as to ensure the compete genset running under stabilization.
8.Skid-mounted bottom Fuel tank - 8hrs continuous running(bigger fuel tank by your demand under extra cost)
9.External recessed emergency stop button for extra safety
10.The colors & Brands by your requests
11.Optional Choice: Soundproof, ATS (automatic transfer switch), AMF panel, Trailer, Parallel system by your extra choose.
2)Perkins OEM
3)CE & ISO Certificate.
4)1year or 1000hrs warranty
7KW-120KW UK Perkins diesel generator set
Genset
Model
Genset
Prime Power
Genset
Standby Power
Perkins
Engine
Engine
Max. Power
Stamford
Alternator
Alternator
Prime Power
KW/KVA
KW/KVA
Model
KW
Model
KVA
SGP-7
7/9
8/10
403D-11G
9.3
PI044E
10
SGP-10
10/13
11/14.5
403D-15G
13.3
PI044G
12.5
SGP-16
16/20
12/22
404D-22G
20.3
PI044H
17.5
SGP-24
24/30
26/33
1103A-33G
30.4
PI144G
30
SGP-36
36/45
40/50
1103A-33TG1
45.6
UCI 224D
50
SGP-48
48/60
53/66
1103A-33TG2
59.3
UCI 224E
60
SGP-52
52/65
57/72
1104A-44TG1
64.3
UCI 224F
72.5
SGP-64
64/80
70/88
1104A-44TG2
79.1
UCI 224G
85
SGP-72
72/90
79/99
1006TG1A
91.5
UCI 274C
100
SGP-80
80/100
88/110
1104C-44TAG2
100
UCI 274C
100
SGP-80
80/100
88/110
1104C-44TAG2
100
UCI 274C
100
SGP-110
110/138
121/152
1006TAG
137.5
UCI 274E
140
SGP-120
120/150
132/165
1006TAG2
178.8
UCI 274F
160
Sungold SGP series adopts UK Perkins engine,
Perkins.
is one of the world’s leading diesel engine manufactures since 1932, nearly 400,000 units for one year, quickly occupied the world market for the full specification, good structure, reliable performance, easy maintenance, low exhaust, long period maintenance. In the auto car, construction, agricultural, industrial and marine markets, major original equipment manufacture choose Perkins Engines because of its fuel, nature gas elding for reliable and durable use.
3.Supply Scope:
1.Standrad tool kits and complete operation/maintenance/spare parts manuals to Engine/Alternator
2.brand-new engine, w/ start motor.
3.brand new brushless alternator, single bearing, flange connection, IP23, H insulation class, with AVR.
4.auto control panel, with LCD display.
5.Engine mounted battery-charging alternator, Genset with battery charger of mains supply.
5.Circuit Breaker, Exhaust Silencer
6.Radiator for 40-50 ambient temperature and bouble-deck cooling, with fan guard and front guard
7.Anti-vibration pads are fixed between engine/alternator and base frame, as to ensure the compete genset running under stabilization.
8.Skid-mounted bottom Fuel tank - 8hrs continuous running(bigger fuel tank by your demand under extra cost)
9.External recessed emergency stop button for extra safety
10.The colors & Brands by your requests
11.Optional Choice: Soundproof, ATS (automatic transfer switch), AMF panel, Trailer, Parallel system by your extra choose.
7sets Deutz 16M640 power plant
7sets Deutz 16M640 Power Plant
Brand: Deutz
Capacity: 6.35mw
run on HFO
7sets Deutz 16M640 Power Plant
Engine Manufacture: DEUTZ
Turbocharger Manufacture:ABB
Alternatiors Manufacture: SIEMENS
Running Hours range from 20,000 to 32,000
for more details, pls contact Ms. Candie Zhang
www.sztwt.net
86-755-8990 1385
ext. 807
Brand: Deutz
Capacity: 6.35mw
run on HFO
7sets Deutz 16M640 Power Plant
Engine Manufacture: DEUTZ
Turbocharger Manufacture:ABB
Alternatiors Manufacture: SIEMENS
Running Hours range from 20,000 to 32,000
for more details, pls contact Ms. Candie Zhang
www.sztwt.net
86-755-8990 1385
ext. 807
10kW generator with Honda engine BH13000
10kW generator
1)Engine GX630(original)
2)4-Stroke OHV 2 cylinders
3)Low fuel consumption
4)100% copper coil
Generator
BH2900DX
BH5000DX
BH7000DX
BH7000DXE
BH8000DX
BH8000DXE
BH11000
BH13000
BH15000
Engine
Model
GX160
GX270
GX390
GX630
GX690
GX690
Type
4-Stroke OHV 1 cylinder
4-Stroke OHV 2 cylinders
Displacement
163 c m³
270.1
c m³
389.2 c m³
614 c m³
688 c m³
688 c m³
Bore x Stroke
68x45mm
77x58mm
88 x 64 mm
77x66 mm
77x72 mm
78x72 mm
Cooling system
Air cooling
Starting system
Recoil
Recoil+ Electric
Recoil
Recoil+ Electric
Electric
Fuel tank capacity
15 L
25 L
Generator
Rated voltage
230V(220V)
230V
220V (120V/240V)
230V(120V/240V)
Rated frequency
50Hz
50Hz /
60Hz
Rated current
8.7A (9.1A)
13.0A (13.6A)
21.7A(22.73A)
26A
38.6A(79.2A/
39.6A)
47.7A
(95.8A/
48.9A)
47.8A
(100A/
50A)
Rated output
2.0kVA
3.0kVA
5.0kVA
6.0kVA
8.5kVA (9.5kVA)
10.5kVA
(11.5kVA)
11.0kVA (12.0kVA)
Max. output
2.2kVA
3.3kVA
5.5kVA
6.2kVA
9.5kVA (10.5kVA)
11.5kVA
(12.5kVA)
12.0kVA (13.2kVA)
Rated power factor
CosΦ = 1
Phase
Single
Other
Length x width x height(mm)
615x430x 430
680x510 x 495
690x510x 520
870x510x 520
690x510x
520
870x510x
520
935 x 617x 622
Net weight(kg)
41.5
70
75.5
81
77
82.5
188
195
195
Why choose generator with Honda engine?
Reliability.
Honda has an unmatched reputation for reliable generators that offer dependable starts and keep running year after year.
Fuel efficiency.
Honda’s superior technology means increased fuel efficiency and longer run times.
Quiet.
Thanks to the use of inherently quiet four-stroke engines and superior technology, Honda generators boast incredibly low decibel levels.
No More Interruptions.
Honda’s scientifically developed technologies make it possible to offer consistent delivery of “clean power” which means more reliability and less interruptions.
1)Engine GX630(original)
2)4-Stroke OHV 2 cylinders
3)Low fuel consumption
4)100% copper coil
Generator
BH2900DX
BH5000DX
BH7000DX
BH7000DXE
BH8000DX
BH8000DXE
BH11000
BH13000
BH15000
Engine
Model
GX160
GX270
GX390
GX630
GX690
GX690
Type
4-Stroke OHV 1 cylinder
4-Stroke OHV 2 cylinders
Displacement
163 c m³
270.1
c m³
389.2 c m³
614 c m³
688 c m³
688 c m³
Bore x Stroke
68x45mm
77x58mm
88 x 64 mm
77x66 mm
77x72 mm
78x72 mm
Cooling system
Air cooling
Starting system
Recoil
Recoil+ Electric
Recoil
Recoil+ Electric
Electric
Fuel tank capacity
15 L
25 L
Generator
Rated voltage
230V(220V)
230V
220V (120V/240V)
230V(120V/240V)
Rated frequency
50Hz
50Hz /
60Hz
Rated current
8.7A (9.1A)
13.0A (13.6A)
21.7A(22.73A)
26A
38.6A(79.2A/
39.6A)
47.7A
(95.8A/
48.9A)
47.8A
(100A/
50A)
Rated output
2.0kVA
3.0kVA
5.0kVA
6.0kVA
8.5kVA (9.5kVA)
10.5kVA
(11.5kVA)
11.0kVA (12.0kVA)
Max. output
2.2kVA
3.3kVA
5.5kVA
6.2kVA
9.5kVA (10.5kVA)
11.5kVA
(12.5kVA)
12.0kVA (13.2kVA)
Rated power factor
CosΦ = 1
Phase
Single
Other
Length x width x height(mm)
615x430x 430
680x510 x 495
690x510x 520
870x510x 520
690x510x
520
870x510x
520
935 x 617x 622
Net weight(kg)
41.5
70
75.5
81
77
82.5
188
195
195
Why choose generator with Honda engine?
Reliability.
Honda has an unmatched reputation for reliable generators that offer dependable starts and keep running year after year.
Fuel efficiency.
Honda’s superior technology means increased fuel efficiency and longer run times.
Quiet.
Thanks to the use of inherently quiet four-stroke engines and superior technology, Honda generators boast incredibly low decibel levels.
No More Interruptions.
Honda’s scientifically developed technologies make it possible to offer consistent delivery of “clean power” which means more reliability and less interruptions.
8 kVA brush generator parts (Stator&rotor)
1, stator & rotor can be develop according to client's request;
2, CE/TUV certificate approved ;
3, Six patents awarded.
1, Portable emergency power supply when working with gasoline generator ;
2, Monophase(TFD) or three phase(TFS) AC power output ;
3, Brush excitation and brushless excitation model available ;
4, AVR (automatic voltage regulator) makes the stable voltage output (TFD brush excitation);
5, The capacitance compensation makes easy maintenance and reliable operation (TFDW
brushless excitation) .
6, CE/TUV certificate approved ;
7, Six patents about the design ;
8, Parts list: Stator +Rotor(Include Ball Bearing & Radiator Fan) + Protect Plate +
Electric Brush.
Detailed parameter
Type
Rated Frequency
(HZ)
Rated Power
(KW)
Max. Output Power
(KW)
Operation Method
THDu%
Phase
External Dimension
Diameter D (mm)
Length
L (mm)
Matching
Taper
TFD190-8.0
60
8.0
8.5
S1
≤15%
1
198
165
1:5
Insulation Class
B (T≤85K) & F (T≤105K)
Power Factor (cosφ)
cosφ=1
Rated Voltage (V)
110,115,120,220,230,240,110/220,120/240,230/400
DC Output
No-DC Output
DC Output 12V / 8.3A
Excitation
Brush-excitation
Taper ratio
Honda engine matching taper is 1:5.333 (3:16)
2, CE/TUV certificate approved ;
3, Six patents awarded.
1, Portable emergency power supply when working with gasoline generator ;
2, Monophase(TFD) or three phase(TFS) AC power output ;
3, Brush excitation and brushless excitation model available ;
4, AVR (automatic voltage regulator) makes the stable voltage output (TFD brush excitation);
5, The capacitance compensation makes easy maintenance and reliable operation (TFDW
brushless excitation) .
6, CE/TUV certificate approved ;
7, Six patents about the design ;
8, Parts list: Stator +Rotor(Include Ball Bearing & Radiator Fan) + Protect Plate +
Electric Brush.
Detailed parameter
Type
Rated Frequency
(HZ)
Rated Power
(KW)
Max. Output Power
(KW)
Operation Method
THDu%
Phase
External Dimension
Diameter D (mm)
Length
L (mm)
Matching
Taper
TFD190-8.0
60
8.0
8.5
S1
≤15%
1
198
165
1:5
Insulation Class
B (T≤85K) & F (T≤105K)
Power Factor (cosφ)
cosφ=1
Rated Voltage (V)
110,115,120,220,230,240,110/220,120/240,230/400
DC Output
No-DC Output
DC Output 12V / 8.3A
Excitation
Brush-excitation
Taper ratio
Honda engine matching taper is 1:5.333 (3:16)
8 to 800kva electric generator
8 to 1000kva electric generator
7 days delivery,100 set in store
CE,SONCAP certificate
12 years experience
8 to 1000kva electric generator
Generator Supply Scope:
1.Engine, alternator, radiator, auto control panel.
2.Base frame, base fuel tank,Flexible pipes, flange, exhaust silencer .
3.Battery, battery charger, battery wires, internal cables, circuit breaker.
4.Manual books of engine, alternator, genset, control panel, wires diagram.
Use: can be used for the open type and the soundproof type , automatic type
1.Specification of genset
Output range
8kw-200kw/10kva-250kva
Noise level
Below 65/75db at 7m (soundproof type)
Engine brand
Cummins ,perkins,detuz, weichai, Isuzu,etc
Engine type
Water cooling, 4 stroke, direct injection
Alternator
Stamford , marathon , leroy somer,
hopow alterantor.
etc
type
Brushless , insulation class: H
Frequency
3%
Frequency at stable state
0.5%
Frequency deviation at instantaneous state
≤+10%
Frequency return time
≤3s
Voltage deviation at stable state
≤±1%
Voltage deviation at instantaneous state
≤±20%
Voltage return time
≤4s
Voltage modulation
≤0.3%
Starting system
Dc alternator
Short circuit protection
MCCB air switch
Cooling system
Water cooling
Automatic alarm system
High water temperature
Low oil pressure
Over load
Battery charging failure
Operating display
Unit voltage, tri-phase load current and frequency display
Water temperature ,oil pressure display
Fuel level, fuel temperature display
Fuel tank
For 12 hours running use
2.
Product Picture & Show Rooms
3. Features
Standrad tool kits and complete operation/maintainance manuals to Engine/Alterntor/ATS
With Circuit Breaker
Robust, highly resistant contruction
W/ starting motor,Key Start / w-battery
The Radiator with fan guard and front guard
Set-mounted exhaust system
Coolant temperature and oil pressure senors
External recessed emergency stop button for extra safety
Coolant temperature and oil pressure senor
4.
Factory View & Certificates
5.Quality assure
Factory Inspection, the test items before delivery are mainly as follows:
Each genset shall be put into commission more than 4 hours totally. They are tested on idle load, fully load and 10% overload;
The noise level is tested
All of the meters on the control panel shall be tested
The appearance of the genset and all of the label and nameplate shall be checked
6.Warranty
12 months or 1000 running hours from shipment date. If the quality problem arise during the warranty period, and verified the problem is caused by our genset-body instead of external or natural reasons. (Refer to all kinds of natural disaster, shipping, loading, unloading, wrong-operation, etc), we will supply the relevant spare parts free of charge for maintenance; after the warranty period, we can supply the required spare parts for you under cost prices.
7 days delivery,100 set in store
CE,SONCAP certificate
12 years experience
8 to 1000kva electric generator
Generator Supply Scope:
1.Engine, alternator, radiator, auto control panel.
2.Base frame, base fuel tank,Flexible pipes, flange, exhaust silencer .
3.Battery, battery charger, battery wires, internal cables, circuit breaker.
4.Manual books of engine, alternator, genset, control panel, wires diagram.
Use: can be used for the open type and the soundproof type , automatic type
1.Specification of genset
Output range
8kw-200kw/10kva-250kva
Noise level
Below 65/75db at 7m (soundproof type)
Engine brand
Cummins ,perkins,detuz, weichai, Isuzu,etc
Engine type
Water cooling, 4 stroke, direct injection
Alternator
Stamford , marathon , leroy somer,
hopow alterantor.
etc
type
Brushless , insulation class: H
Frequency
3%
Frequency at stable state
0.5%
Frequency deviation at instantaneous state
≤+10%
Frequency return time
≤3s
Voltage deviation at stable state
≤±1%
Voltage deviation at instantaneous state
≤±20%
Voltage return time
≤4s
Voltage modulation
≤0.3%
Starting system
Dc alternator
Short circuit protection
MCCB air switch
Cooling system
Water cooling
Automatic alarm system
High water temperature
Low oil pressure
Over load
Battery charging failure
Operating display
Unit voltage, tri-phase load current and frequency display
Water temperature ,oil pressure display
Fuel level, fuel temperature display
Fuel tank
For 12 hours running use
2.
Product Picture & Show Rooms
3. Features
Standrad tool kits and complete operation/maintainance manuals to Engine/Alterntor/ATS
With Circuit Breaker
Robust, highly resistant contruction
W/ starting motor,Key Start / w-battery
The Radiator with fan guard and front guard
Set-mounted exhaust system
Coolant temperature and oil pressure senors
External recessed emergency stop button for extra safety
Coolant temperature and oil pressure senor
4.
Factory View & Certificates
5.Quality assure
Factory Inspection, the test items before delivery are mainly as follows:
Each genset shall be put into commission more than 4 hours totally. They are tested on idle load, fully load and 10% overload;
The noise level is tested
All of the meters on the control panel shall be tested
The appearance of the genset and all of the label and nameplate shall be checked
6.Warranty
12 months or 1000 running hours from shipment date. If the quality problem arise during the warranty period, and verified the problem is caused by our genset-body instead of external or natural reasons. (Refer to all kinds of natural disaster, shipping, loading, unloading, wrong-operation, etc), we will supply the relevant spare parts free of charge for maintenance; after the warranty period, we can supply the required spare parts for you under cost prices.
8 to 800kw diesel generator set
8 to 800kw diesel generator set
CE,SONCAP certificate
1 year, 1000 hours warranty
Key start auto start
8 to 800kw diesel generator set
Generator Supply Scope:
1.Engine, alternator, radiator, auto control panel.
2.Base frame, base fuel tank,Flexible pipes, flange, exhaust silencer .
3.Battery, battery charger, battery wires, internal cables, circuit breaker.
4.Manual books of engine, alternator, genset, control panel, wires diagram.
Use: can be used for the open type and the soundproof type , automatic type
1.Specification of genset
Output range
8kw-200kw/10kva-250kva
Noise level
Below 65/75db at 7m (soundproof type)
Engine brand
Cummins ,perkins,detuz, weichai, Isuzu,etc
Engine type
Water cooling, 4 stroke, direct injection
Alternator
Stamford , marathon , leroy somer,
hopow alterantor.
etc
type
Brushless , insulation class: H
Frequency
3%
Frequency at stable state
0.5%
Frequency deviation at instantaneous state
≤+10%
Frequency return time
≤3s
Voltage deviation at stable state
≤±1%
Voltage deviation at instantaneous state
≤±20%
Voltage return time
≤4s
Voltage modulation
≤0.3%
Starting system
Dc alternator
Short circuit protection
MCCB air switch
Cooling system
Water cooling
Automatic alarm system
High water temperature
Low oil pressure
Over load
Battery charging failure
Operating display
Unit voltage, tri-phase load current and frequency display
Water temperature ,oil pressure display
Fuel level, fuel temperature display
Fuel tank
For 12 hours running use
2.
Product Picture & Show Rooms
3. Features
Standrad tool kits and complete operation/maintainance manuals to Engine/Alterntor/ATS
With Circuit Breaker
Robust, highly resistant contruction
W/ starting motor,Key Start / w-battery
The Radiator with fan guard and front guard
Set-mounted exhaust system
Coolant temperature and oil pressure senors
External recessed emergency stop button for extra safety
Coolant temperature and oil pressure senor
Regulable frequency from 50Hz to 60Hz
4.
Factory View & Certificates
5.Quality assure
Factory Inspection, the test items before delivery are mainly as follows:
Each genset shall be put into commission more than 4 hours totally. They are tested on idle load, fully load and 10% overload;
The noise level is tested
All of the meters on the control panel shall be tested
The appearance of the genset and all of the label and nameplate shall be checked
6.Warranty
12 months or 1000 running hours from shipment date. If the quality problem arise during the warranty period, and verified the problem is caused by our genset-body instead of external or natural reasons. (Refer to all kinds of natural disaster, shipping, loading, unloading, wrong-operation, etc), we will supply the relevant spare parts free of charge for maintenance; after the warranty period, we can supply the required spare parts for you under cost prices.
CE,SONCAP certificate
1 year, 1000 hours warranty
Key start auto start
8 to 800kw diesel generator set
Generator Supply Scope:
1.Engine, alternator, radiator, auto control panel.
2.Base frame, base fuel tank,Flexible pipes, flange, exhaust silencer .
3.Battery, battery charger, battery wires, internal cables, circuit breaker.
4.Manual books of engine, alternator, genset, control panel, wires diagram.
Use: can be used for the open type and the soundproof type , automatic type
1.Specification of genset
Output range
8kw-200kw/10kva-250kva
Noise level
Below 65/75db at 7m (soundproof type)
Engine brand
Cummins ,perkins,detuz, weichai, Isuzu,etc
Engine type
Water cooling, 4 stroke, direct injection
Alternator
Stamford , marathon , leroy somer,
hopow alterantor.
etc
type
Brushless , insulation class: H
Frequency
3%
Frequency at stable state
0.5%
Frequency deviation at instantaneous state
≤+10%
Frequency return time
≤3s
Voltage deviation at stable state
≤±1%
Voltage deviation at instantaneous state
≤±20%
Voltage return time
≤4s
Voltage modulation
≤0.3%
Starting system
Dc alternator
Short circuit protection
MCCB air switch
Cooling system
Water cooling
Automatic alarm system
High water temperature
Low oil pressure
Over load
Battery charging failure
Operating display
Unit voltage, tri-phase load current and frequency display
Water temperature ,oil pressure display
Fuel level, fuel temperature display
Fuel tank
For 12 hours running use
2.
Product Picture & Show Rooms
3. Features
Standrad tool kits and complete operation/maintainance manuals to Engine/Alterntor/ATS
With Circuit Breaker
Robust, highly resistant contruction
W/ starting motor,Key Start / w-battery
The Radiator with fan guard and front guard
Set-mounted exhaust system
Coolant temperature and oil pressure senors
External recessed emergency stop button for extra safety
Coolant temperature and oil pressure senor
Regulable frequency from 50Hz to 60Hz
4.
Factory View & Certificates
5.Quality assure
Factory Inspection, the test items before delivery are mainly as follows:
Each genset shall be put into commission more than 4 hours totally. They are tested on idle load, fully load and 10% overload;
The noise level is tested
All of the meters on the control panel shall be tested
The appearance of the genset and all of the label and nameplate shall be checked
6.Warranty
12 months or 1000 running hours from shipment date. If the quality problem arise during the warranty period, and verified the problem is caused by our genset-body instead of external or natural reasons. (Refer to all kinds of natural disaster, shipping, loading, unloading, wrong-operation, etc), we will supply the relevant spare parts free of charge for maintenance; after the warranty period, we can supply the required spare parts for you under cost prices.
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