Purchase Qty. Reference FOB Price
1,000-4,999 Pieces US$0.15
5,000-9,999 Pieces US$0.10
10,000+ Pieces US$0.05
Product Description
Product Description Application:Principle Expansion of the screw fixed principle: the expansion screw fixed but the use of pull-shaped gradient to promote expansion of the friction grip force, to a fixed effect. Screw is a thread, a vertebral end. Outside the package of a tin, iron cylinders ...