Place of Origin
Guangdong, China
Standard
AiSi, ASTM, bs, DIN, GB, JIS
Technique
2014 HOT SALE High Quality rolling door spring heat treatment
Surface Treatment
cold rolled
Application
rolling shutter door, spring box
Model Number
Cortinas Metalicas de Fleje en Acero
Processing Service
heat treatment
product name
220mm tambo metal rolling roller shutter spring box
spring box style
Nylon Ball, Steel Ball, Nylon Bearing, Steel Bearing, Nylon Ball etc.
Standard of surface
Original steel color
usage
roller shutter door spring, garage door spring use
application
rolling shutters with spring steel
type
steel strip bending for rolling shutters
spring box size
200mm/220mm/240mm