1.stainless steel spare part casting. 2.silicon sol technique. 3.standard:ASTM,AISI, ... ,JIS etc. 4.OEM service is offered. 1.stainless steel spare part casting.2.available material:stainless steel,carbon steel and ... equipment etc.9.product:valve flang,elbow,screw nut,screw bolt, pipe fitting,impeller,coupling,pump parts and so on.