FACTORY OUTLETS HOLLOW DIFFERENT MATERIAL AND DIFFERENT SIZE. Make products according to customer's samples or drawings. PRODUCT NAME:SUPERIOR CLAMPMATERIAL:STAINLESS STEEL W1 W2(201) W4(201) W(304)DESCRIPTIONS: European hose clamps, also known as a strong hose clamps, open inside and outside the ring structure and secured with bolts. The hose clamps effectively solve the small diameter of the ...