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 as one of the biggest manufactures of pipe in North China, whose main product is seamless pipe, used in industries of petroleum, gas, mechanism, chemistry, boiler, water supply and refrigeration. Their outer diameter ranges from 21.34mm to 355mm. The main materials are carbon steel and alloy steel. In terms of different requirements, our pipe products are produced according to national standards or corresponding foreign standards such as ASTM, DIN, BS, JIS, GOST and ISO and so on. It is widely applied to all kinds of industries as well as quite a few large-scale engineering projects in China.
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