Name:Botou Yongchuang Spring Manufacturing Co., Ltd.
Address:Yinzhuang Village, Wenmiao Town, Botou City, Hebei Province, China (Mainland)
Telephone:+86-0317-8068646
Mobile Phone:+86 15030705781
Fax:+86-0317-8068646 Zip:062150
Email:admin@yc-spring.com
customerservice1@yc-spring.com
customerservice2@yc-spring.com
Roller shutter Torsion Spring
Material：65Mn/72A/77B
Wire diameter：5mm
Inner diameter：75mm
Length：237mm
Turn：Right/Left
Service：OEM & Sample