Features: Standard: Our cam and groove couplings are made to standard of A-A-59326 (previously called MIL-C-27487) or DIN 2828. Specification: Sizes available: 1/2",3/4",1",1-1/4",1-1/2",2",3",4",5",6" Types available: A, B, C, D,E, F,DC,DP Material of the body:Aluminum alloy,Brass,Nylon,Polypropylene(hot!),Stainless steel(hot!) (CF8M casting) Handles: For Aluminium camlock couplngs: We use stainless steel handle or Brass handle. For Brass camlock couplings: We use stainless steel handle or Brass handle. For Nylon and Polypropylene camlock couplings: We use stainless steel handle. For Stainless steel camlock coupling: We use SS304 handle. Hoop,Fixed Pin,Safety Pins:zinc-plating Hoop,Fixed Pin,Safety Pins Gaskets:NBR,EPDM Thread:BSP,NPT We also manufacture the Air hose coupling,Guillemin coupling,Steam coupling,Interlock Clamp,SL clamp,TW coupling,Foot valve and other products.