my corporation is HONGCHENG STEEL PIPE CO.,LTD.specialized in seamless steel maniufacture and main exporter in china .Like the 6-824*1-75mm accounting more than 4800 electric-power pipe,petroleum crack tube,high pressure boiler tube,low-medium press boiler tube,a fluid tube ,a structure pipe,a pipeline tube,turn and fatty appropriation tube,low-alloy pipe,with tow factories in jiangsu