Zhangqiu Yu Bin Petrochemical Fittings Factory is the professional manufacturer and exporter of flanges.The factory has 14 years of experience in machining. We manufacture all kinds of flanges ,such as forged flange ,blind flanges and welded neck flange and more as Customer requirements. Our products are widely used in shipbuilding, oilfield, and pipeline etc.With the rich experience of making and exporting flanges Our customers are from all over the world, such as Germany, Italy, Spain, America, Brazil, Janpan, South Korea, Austrilia, Malaysia, Philippines, Taiwan, South Africa, Morocco, and so on