... inchesBody Material:gray cast iron,nodular cast iron,carbon steel,stainless steel,aluminium alloyPlate Material:iron nylon ... cladding,ductile iron,aluminium bronze plating,stainless steel,carbon steel,aluminium alloy platingSeat Material:natural rubber,butyronitrile ... performance , ptfe ,etc. Accordingly improve the product's sealing and also increase application scope. As the same time,collocate ...