We are CO-WORKING DEVELOPING CO., LTD. We are from Tianjin, China. Our main business scope covers steel products, such as pipes, pipe fittings and flanges, valves, and solar energy. We also can supply equipment for oil field, and machines for welding and cutting. We have three factories: one is located in Hebei Province, one is located in Shandong Province, and the third one is in Tianjin. Moreover, we have good and long-term relationships with our suppliers in China. So we can control the good quality, and short delivery time. And we are nearby Tianjin Seaport, Qingdao, and Dalian Seaport, so it is very convenient to export. Our products have been widely used in petrochemical industry, mining machinery, engineering machinery, pipe lines, water treatment, textile machinery, heavy machinery, metallurgy, ship building, tire molds, transport vehicles, and wind electric power generation. We always export our products to Europe, India, Korea, and ...[More]. We are looking forward to cooperating with you. Welcome to our factory and our office. Hope to establish long-term business relationships with you.