... DN600 Structure:butterfly valve High corrosion-resistance butterfly valve. Full PTFE Lined butterfly valveSize Range: DN50~DN600Class Range: PN10-PN16 ... 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 ...