... 4 OD:10*20-150*300mm 1)Product Name:galvanized rectangular steel tube2)Place of Origin:Tianjin China(Mainland)3) ... 20007)Application:Widely used in water supply, construction support, mechanical tube, etc.8)Export: Europe, North America, the Middle East, ... best services.Tianjin f shuntong steel pipe Co., LtdMiss Allice MaoTel:0086-022-68313579Fax:0086-022-68313579 hot dipped galvanized steel pipe