Co***ny¡¯s products are mainly used in petroleum, natural gas, gas, water supply, heat supply and other pipelines, are widely used in chemical industry, electric power, metallurgy and other construction projects, also used in bridges and large-scale housing construction.
Co***ny¡¯s can according to customer requirements, according to oil industry standards, national standards and the American Petroleum Institute standard production D219mm-D2520mm, wall thickness 6mm-25.4mm, material X80 series of spiral ...
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