... grade CN7M 2.Process:Sand casting 3.Used in pump industry 4.Inspect by Dye pentetrant. pump castingProduct detailsWe are a supplier of ... lost wax casting,water glass casting and sand casting;3)Standard:ASTM,JIS,DIN,BS;4)Finish:Machining,Welding,Polishing,Heat ... ,Chemical Analysis, Mechanical property,Dye penetrant.6)Used for water treatment industry and pump industry. We wellcome any inquiry you may ...