HEBEI CHENG DA Pipes Co.,Ltd.(Cheng Da Pipes for short), found in 1976, with registered capital of RMB 2600 million (approx USD 430 million) covers an area of 200000 square meters. Cheng Da is a private high-tech enterprise with import and export right which specialized in research, production and sales of FRP pressure vessel for water treatment in membrane process, DTRO (disc-tube reverse osmosis) shell for landfill leachate treatment, FRP precision filter.