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Tempered spring strip C67 for rolling shutter

c67s or c75s blue spring steel + hardened and tempered conditions
1.0mm-1.6mm thickness
40mm-80mm width,
MOQ 2tons for each size
good quality and excellent elasticity
Guangzhou Cgoodsteel Co.,Ltd spring steel strip for shutter spring is well-know good quality for this application. We understand that the flexibility is the key for shutter spring when the door rolling down and rolling up and strip steel can`t be broken when bending. GuangWeiYouLiang, every year, exports hundreds of tons of strip steel worldwide for this use and We have great experience, knowing how to solve these problems and to avoid this problems. From first-rate raw material, cold rolling, quenching and tempering process, de-burring edges, etc, each production step, is checked carefully in width, thickness, hardness, edge as flexibility. Spring steel strip (c67s and c75s) is most suitable for shutter spring material.
 
Guangzhou Cgoodsteel Co.,Ltd has been producing shutter spring steel strip with the following dimensions:

Hardened and tempered spring steel strip for roller shutter

C67S, c75s grade, blue surface, rounded edge, 44-48HRC hardness, moq 2000kgs,

average steel dimension

60 x 1.60

50 x 1.50

65 x 1.20

60 x 1.0

80 x 1.40

45 x 1.50

60 x 1.20

55 x 1.0

65 x 1.40

60 x 1.30

55 x 1.20

50 x 1.0

60 x 1.40

55 x 1.30

50 x 1.20

45 x 1.0

55 x 1.40

50 x 1.30

45 x 1.20

40 x 1.0

50 x 1.40

45 x 1.30

40 x 1.20

30 x 1.0

45 x 1.40

40 x 1.30

35 x 1.20

 

40 x 1.40

 

 

 

 

Application (rolling door spring):

 

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