Germany Type Worm Drive Hose Clamp, Made of Galvanized Steel Bandwidth: 9mm and 12mm are both availableW1, all parts are galvanized steelW2, the screw is galvanized steel, others are 430/200SS or other kinds of stainless steelW4,all 301SS/304SSW5, all 316SSAccording to requirement of customers, other sizes, and material are also available Germany Type Hose Clamp