Copper valve 1)abundant experience in casting production 2)high- ... compression casting, investment casting(lost wax casting), die casting, pressing & forging etc. Machining: complete machining such as Machining center, CNC, Lathe ... casting, investment casting(lost wax casting), die casting, pressing & forging.Weight range0.05-5000kgSurface treatmentpainting, polishing, heat treatment, plaining or ...