... .The products' information as follow:NO. 1---Material: Casting steel, alloy steel, carbon steel, stainless steel, grey iron, etc.NO. 2---Standard: GB/ASTM/AISI ... are welcomed. 1Commodity Machinery casting parts 2 Material Casting steel, Alloy steel, Stainless steel, Grey iron, 3 Process Investment casting, Sand casting, Lost wax ...