... and water glass process), die casting process, permanent mold casting, forged parts,5) Manufacturing equipment (foundry used): cupola, electric furnace, ... machine,normal lathe, line cutter etc.6) Testing equipment (foundry used): elongation tester, hardness tester, metallographic microscope, spectrometer ... -83701520Fax:+86-411-83704610Contact: Catherine Chen Sand casting technology for cylinder cover