W1: ALL ZINC-PLATED.
W2: BOLT, AXIS AND COUPLING WITH ZINC-PLATED, OTHERS WITH STAINLESS STEEL 300.
W4: ALL STAINLESS STEEL 301 OR 304.
W5: ALL STAINLESS STEEL 316.
* Has different types
* Easy to fix.
* Smooth band inside to protect hose surface from damage.
* Corrosion resistant,and protects the rubber surface is not damaged.
If you're looking for the ROBUST CLAMP with SOLID NUT, welcome to wholesale the product from our factory. As one of the leading manufacturers and suppliers in China, we will offer you the best service and fast delivery. Now, check the quotation with our seller.