联系人 Ms. Cindy
westlake, Hangzhou, Zhejiang
Item:SII *-A/B Outer diameter:**0mm Inner diameter:*2mm Thickness:1.*0mm 1.Spring box for roller shutter door operator or garage door operator or roller sping. *****:high quantity of galvanized plate and roller iron ball inside. 3.Packing:by weaving bag or carton. *****: disassemble or assemble The size could be designed according to customers&#**9; request.
