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coil spring
coil spring

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coil spring
high tensile materials
on stock
service life be up to 0.3-1million times depending on the compressing amouting

coil spring
high tensile materials

stricktly size tolerance
long fatigue life

 

produced by

Dalian Guoyu Precision Machinery Co., Ltd.

 

 

Products

 

precision mould parts, standard and customized punches, guide pins, guide bushings, ejector pins, ejector sleeves, die inserts,carbide pins, die casting part and components,locking blocks

 

 

Applied in

 

automobile die, precision plastic mould, punch die, air conditioning fin die, semi-conduct encapsulation mould,  etc

Processing materials

 

Copper, high speed steel, carbon steel, alloy etc.

 

Processing Standards

 

 

DEM, HASCO, MISUMI, PUNCH, SANKYO, DAYTON

 

Processed and

Testing Equipments

Center-less grinder, surface grinder, internal grinder, cylindrical grinder, Inner-aperture grinder, CNC grinding machine, CNC milling machine, polishing machine, engine lathe, Quadratic element, Projector (imported from Japan)

 

Specialized in

 

Processing precision parts according to customer’s drawing.

 

Contact by following

information

1. Plus or Minus tolerances.

2. Type of material and hardness needed.

3. Part application.

4. Target price if you have one.

 

 

 

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