socket type connection socket type connection Features: 1) We can produce all kinds of valve parts, fittings, automobile parts, mechanicalparts and alloy castings according to clients' drawings, materials and samples2) High quality and competitive price3) Product materials: ductile GGG40-GGG60 and gray iron, mostly according to the standards of ANSI/ASTM, BS, DIN, NF, JIS, and GB 4) We can ...