... 1.stainless steel casting 2.silical sol technique. ss pipe fitting clamp hoop used in water treatment equipment1. carbon ... valve, flange, elbow, screw nut, screw bolt, pipe fitting, impeller, coupling, pump parts and so on. Item DescriptionProcessProcess ... 16MnCr5, 42CrMo4, 35CrMo, 40Cr etcsizeAccording to customers' requirementdesignpacking ss pipe fitting clamp hoop used in water treatment equipment