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Product name q195 q235 q345 astm carbon steel tube ERW mill 20 40 80 carbon construct ERW Steel and iron pipes Company Profile Tianjin Xinyue Industrial and Trade Co. take immensure pleasure in introducing itself as one of the leading Manufacturers & Exporter of high quality Pipes,Tubes & Flanges, etc. always insist on the principle of 'Integrify-Based,Customer First, High Quality Q195 Q235 Q345 Materials pre steel tube prerectangular erw pipeq235 erw square pipe round Learn More