... ,ASTM,AISI,DIN,BS,JIS. 4.Processs:sand casting 5.Test:UT,MT Iron Sand Casting Pump Body for Machine1.we are the ... leading and professional sand casting foundry in North China ... in techniques and price.2.Processs:sand casting3.Sandard:GB,ASTM,AISI,DIN,BS,JIS.4.Material:Gray iron,ductile iron,malleable iron,carbon steel ...