... castings, steel investment castings, stainless steel gear boxes, 304, 316, CF8, CF8M, CF4, CF4M, anti corrosion steel castings, lose wax casting, heatresistant castingNingbo ... , engineering, petroleum, electricity Industry with the material Aluminium casting, zinc castings, steel casting, die casting, investment casting and well CNC-machined metal parts.Upon Insisting ...