Cangzhou hirelong piping equipment co.,ltd.

Hirelong piping equipment group co.,ltd. is an expert manufacturer and trader of carbon steel&alloy steel and stainless steel pipes&tubes, smls, bw and screwed pipe fittings, fastening pieces, flanges&industrial valves serving various petrochemical and pharmaceutical factories, refineries, power projects (thermal&nuclear), water treatment plants, engineering construction companies in china.