Shanghai NTC Technology Co., Ltd with 20 years of professional experience in precision casting, The product range includes pump valve accessories, automotive parts, golf club heads, vacuum accessories, kitchen equipment accessories, door accessories, scooter accessories, etc. for industrial and civilian products. The materials include carbon steel, stainless steel, alloy steel, high-chromium high-nickel steel, gray iron, white iron, etc. The main casting processes are silica sol precision casting, water glass, sand casting, coated sand, lost foam casting, etc.