... : aluminum , carbon steel, gray iron, ductile iron, etc· resin coated sand casting· Certificate:ISO 9001:2000· Professional Service· OEM ... .20,25,30,35,40,45Green-sand mouldingASTM A126-Class A, Class B, Class CResin-sand mouldingDIN-GG10, GG15, GG20, GG25, ... 420C29, 316Lost foam castNF-Z6CND18.12M, Z6CN18.10M,Z12C13Shell-core cast Electric –furnace smelting5Alloy steel castingsDIN-GS-40Mn5, GS-20Mn5, ...