Petro Chemical BW Type Metal Sealing Butterfly Valve Wenzhou Deki Valve Co., Ltd., is a professional industrial valve supplier specialized in valve research, design, manufacturing, sales and services. Our company鈥檚 main products include: gate valves, butterfly valves, ball valves, check valves, globe valves, plug valves, filters and etc. Our products are used by our customers in the Oil and聽...