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We are a main metallurgical enterprise of national class.Under the main plant ,there are the spiral pipe branch factory,hot-expanding steel tube branch factory,cold-drawn steel tube branch factory and seamless pipe branch factory.It has 200mu area and has 1500 staff,including 280 high-class engineers,28 semi-senior titled technicians and 32 technicians.The fixed asset is RMB250,000,000 Yuan.The annual production capability of D219-D1820,6-8mm,double surface submerge arc spirally welded pipe...more>>