Baoding Tongda petroleum equipment factory started commercial operation since March 1994, provide technical data, design, production and sales of aluminum / stainless steel inner floating roof, one or two sealing device and tank fittings by Beijing Design Institute, products from 100m3 to 50000m3, the annual production capacity of 300 sets. Medium: gasoline, aviation kerosene, crude oil, light diesel oil, alcohols, ethers and benzene and other volatile media. Major projects involving petrochemical and other industries