Pump casting 1.Material is ASTM A743,grade CN7M 2.Process:Sand ... the customer's requirement,drawings or samples. 1)Material:Stainless steel,Alloy steel,High Nickel and Chromium steel ... ,Carbon steel,Special material as customer's requirement; 202,303,304,316, ... wax casting,water glass casting and sand casting;3)Standard:ASTM,JIS,DIN,BS;4)Finish:Machining,Welding, ...