Welded pipe welded tube ERW pipe OD:10mm-530mm WT: 0.3mm-35mm LENGTH:1000mm-12000mm ERW pipe/line pipe/api pipeWe have advantage in qualitn ... servand services. Our productions are much admired in thed in the world market, they are widely used in water, oil, ... DIN2440/2444, EN10255, EN39, JIS G3444, GB/T 3091Steel G;Steel Grade:Q235,20#,ASTMA283,ASTMA53,ASTMA315,ASTMA106,ASTM106,ASTMA178,ASTMA78 ...