The Specification of spring: 1.75'' 2.0'' 2.625'' 3.75'' 5.25'' 6'' etc. Materials are DIN 17223, JIS G3522, GRS3522. Wire Diameter is 4.0~12mm.The series of door springs we developed are equal to the…
ECROBOT CO., Ltd, Business Registration Number : 220-88-71747, CEO J.W.Park, TEL : +82-2-552-7676, E-mail : E-mail : Contact us Address : (Hwanghwa B/D 11F, Yeoksam-dong)320, Gangnam-daero, Gangnam-gu, Seoul, South Korea