... Ball Valves with welding connector,hot forging valves,brass ball valve. Soft sealing and nickle finish. Welding connector Brass ... small volumn, light weight, lower height than gate valve and stop valve.3. Soft sealing and nickle finish. Welding connector.4 ... Control, In-coming Material Inspection, Assembly Line Quality Control, Leakage Testing, Final Inspection Before Delivery.3) 100% Leakage Test.4) ...