... pvc duct/clamp Stainless steel #316, 301,201,306 Carbon steel, zinc plated pvc duct/clamp1, Dentiform structure of the clamp recommand heavy ... torque to large diameter hose, and reiterative use is possible. 2 ... 301,201,304 Carbon steel, zinc plated We can supply large quantity of many kinds of British style, American style, German ...