... Thickness0.8mm-14mmThickness tolerance+/-0.5mmMaterialQ195,Q235,Q345Quality gradeFirst gradeTolerence of OD±0.3mmLength3m-12m Product namewelded pipeOut diameter20mm-329mmWall Thickness0 ... , Hong KongProvince/CityShandong ,LiaochengAddressNo 28, South of Nanhuan Road, 1--3 Building Phoenix Industrial Park, Liaocheng, Shandong, ChinaMobile phone15266862145Telephone86-635-2128822Websitewww. ...