Guangzhou Cgoodsteel Co.,Ltd band spring for roller shutter door applicaton. 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.
GuangWeiYouLiang has been producing shutter spring steel strip with the following dimensions:
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Hardened and tempered spring steel strip for roller shutter C67S, c75s, c80 grade, blue surface, rounded edge, 44-48HRC hardness, moq 2000kgs, average steel dimension |
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50 x 1.50 |
65 x 1.20 |
60 x 1.0 |
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80 x 1.40 |
45 x 1.50 |
60 x 1.20 |
55 x 1.0 |
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65 x 1.40 |
60 x 1.30 |
55 x 1.20 |
50 x 1.0 |
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60 x 1.40 |
55 x 1.30 |
50 x 1.20 |
45 x 1.0 |
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55 x 1.40 |
50 x 1.30 |
45 x 1.20 |
40 x 1.0 |
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50 x 1.40 |
45 x 1.30 |
40 x 1.20 |
30 x 1.0 |
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45 x 1.40 |
40 x 1.30 |
35 x 1.20 |
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40 x 1.40 |
50 x 1.25 |
60 x 1.25 |
70 x 1.25 |
