Spring for Rolling Shutter Door Application and Cold Rolled Technique shutter Spring

1. The hardness is 30-55 HRC depend on user demand

2. Finish: Blue,Bright, yellow, gray, etc

3. Edge: One or both edges round square chamfered and beveled

4. Bright polished cold rolled steel strip

5. Tolerance of thickness: +/-0.01mm, width: +/-0.1mm

 Why Choose China Foshan chuangjianxinmei Door;

1.Latest technology and experience, keeping on developing and innovating, chuangjianxinmei Doors made grate achievements day by day
2.Advanced managing pioneers and technical staff;
3.Progressive production equipment;
4.Perfect quality inspection system;
5.Solid product quality;
6.Considerate service, reply within in 24 working hours

Please contact us for more information
How to Contact China foshan chuangjianxinmei Door;