| Production ¦Õ219-508 mm longitudinally welded pipes to adopt the international advanced Pai roll forming process, the electrical configuration by the German Siemens co***ny PRC and the United Kingdom MENT DC digital speed control devices to ensure that the units high precision and high efficiency operation reliability. Production ¦Õ219-426 mm diameter unit by the use of international advanced up of reducing technology can be guaranteed in the process of hot-rolled steel pipe heat balance, production ¦Õ244.5-720 mm expansion of the steel pipe wall thickness in the same unit where different specifications available , the different thickness of pipe. So that the overall co***ny''''s product series. Huayang Co***ny products, used in all international and domestic advanced production facilities (by) so as to the advantages of improving the quality of products. Casing petroleum products, Longitudinal steel, hot-rolled steel, and seamless steel pipes, etc..
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