Casting Gear Box pPrts 1)grey iron,ductile iron, 2)Sand casting 3) ... )100% inspection and control Sand Casting Gear Box Parts Detailed:auto casting partscasting,casting parts,auto casting partsTechnical process:sand casting,investment casing ... steel,various brass & aluminium,etcProducts application:pump parts,valve parts,auto parts,food machinery parts,rolling door partsQuality control:in house ...