... to manufacture castings according to the customer's requirement,drawings or samples. 1)Material:Stainless steel,Alloy steel, ... as customer's requirement; 202,303,304,316,ASTM A743, grade CN7M, CF8M,CF8,304L,316L,430F,430,440A.2)Process:Investment casting ... , silicasol casting or lost wax casting,water glass casting and sand casting;3)Standard:ASTM,JIS,DIN ...