SAE 1070 blue rolling shutter spring steel strip

SAE 1070 blue rolling shutter spring steel strip

GuangWeiYouLiang`s steel strip for shutter spring is well-know good quality for rollin shuter 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. Every year, we export hundreds of tons of strip steel worldwide for this use and We have great and full 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 and flexibility. Spring steel strips ( material grade c67s and c75s) are most suitable for making shutter spring.

HARDENED AND TEMPERED STEEL STRIP FOR ROLLING SHUTTERS

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