Distribution Transformer Dry Type Transformer, High Voltage Switchgear, Vacuum Circuit Breaker manufacturer / supplier in China, offering Metal Part Φ 40 Φ 80 Φ 100 Stainless Steel Butterfly Valve for Transformer, Oil Immersed Transformer Part Stainless Steel Cast Steel Butterfly Valve Φ 200, Bdz Series Butterfly Valve for Oil Immersed Transformer Oil Circuit and so on.