... Steel AndOther Materials Available To OrderEnd Connection: Flanged, Screwed, Socket Weld Or Butt Weld OfferedProducts: We can produce gate, globe ... , check, ball and butterfly valves with the materials of ductile iron, carbon steel, alloy steel, stainless ... to order. Our products are designed and manufactured in accordance with the standards of GB, ASME, ANSI, API, BS, DIN, ...