Gaoneng valves group co, ltd established in 1984, mainly produce ANSI /DIN butterfly valve, API ANSI gate valve, globe valve, check valve, ball ***** is cast iron, ductile iron, cabron cast steel, stainless steel, alloy steel, etc.with certificate of ISO9001, API 6D, CE. The largest size of butterfly valve up to ***** price, good quality, timely delivey and good service always attract many large clients to our attention.Welcome you visit our website ***** or ***** , contact Laura Chen.