Rolling shutter door spring steel ck67

Guang Zhou Cgood Steel is one of the biggest exporter for rolling shutter spring material in China. We are the well known and reputalbe maerial for rolling shutter door spring.

 

Each production's step is performed in the company to garrantee best flexibility and strictly quality control.

 

We have our owncold rolled facilities, firstrate crud materials purchaed from ISO certificated enterprise to guarantee superior quality.

 

All processes are done with our skillful employees and morden facility to assures best performance in surface  finishing, flatness and constanc of mechanical poperies.

 

Each coil before packing has been checked by width, thciness, hardness, straightness, bend-ability and elasticity.

 

We use the best raw material, precision cold rolling process, precise sltting pocess, de-burring of edges, and constant hardening and tempering process to assure our material with close tolerance in shape and mechanical properties.

 

 

appliations:  roller shutter steel door, garage door, roller shutter metal door

material:C67S, c75s(SAE1070,SAE1075)

surface:polish blue/blue

edge: rounded

hardness:43-49hrc

 

60x1.60    60x1.50    65x1.20    60x1.0

80x1.40    50x1.50    60x1.20    55x1.0

65x1.40    45x1.50    55x1.20    50x1.0

60x1.40    60x1.30    50x1.20    45x1.0

55x1.40    55x1.30    45x1.20    40x1.0

50x1.40    50x1.30    40x1.20    30x1.0

45x1.40    45x1.30    35x1.20  

40x1.40    40x1.30