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  HN INDUSTRIAL CO.,LIMITED, HANNIING (NINGBO) TRADING CO.,LTD, was found in 2020, our company mainly specializes in doing the Erw carbon steel pipe, seamless steel pipes,  hot dipped galvanized steel pipe, pre-galvanized tubes, square tubes and rectangular tubes, scaffolding steel pipe, ringlock scaffoldings,  grating steels, flange, clamp, and pipe fittings, also trading on threaded rods, washer, nuts,brass ball valves, stainless ball valves,our products are widely used in oil and natural gas project, low pressure liquid transportation, oil casing, building construction and other fields. Based on the high quality and considerate service, Our products already well export to Brazil, Mexico, Colombia, Australia, Middle- east, Philippine, Indonesia, Nigeria Africa Countries and so on.
  Our products meet the following standard: API 5L/5CT, ASTM A53/A106/A500, EN 39,10219/10255, BS1387, ISO65, DIN2440 and are approved by the third party.
  We have built long-term cooperation with many clients and have received wide acclaim.Pursuing the principle of "Customer First, Integrity First", we are sincerely expecting to cooperate with you!