... Abundant experience in silica sol precision casting production b. High-standard technical team ... , stamping parts, casting and forging parts, assembly service.2.Various Machining Materials:stainless steel, alloy steel ,brass, ... bronze, copper, aluminum, plastic, or customer specified. 3.Finishes: Anodizing, Electroplating, Polishing, Powder Coating, Blacken, Hardening, Painting and ...