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
Length：320mm
Outer diameter:105mm
Surface treatment:Oiled / Boiled Black
MOQ:100 pcs