Wedge Gate Valve 1. professional manufurer above 10 years. 2.CE and ISO9001 certificate 3.Z40H-16/25/40 1. Material: brass, copper, bronze, alloy steel, stainless steel, carbon steel, aluminum, plastic etc2. Standard/non-standard parts, OEM/ODM is available4. ISO9001 2000 quality control5. Strong engineering team makes high quality; own test equipments and 100% inspection prior to each shipment6. ...