Hunan Pirme Steel Pipe Co. Ltd: SMLS CARBON STEEL PIPE OD: 10.3mm ~ 1016mm, WT: 1.7mm ~ 52mm, LENGTH: Fxied 5.8/11.8/12mtr, SRL, DRL ERW CARBON STEEL PIPE OD: 21.3mm ~ 660mm, WT: 1mm ~ 20mm, LENGTH: 0.5mtr ~ 22mtr LSAW CARBON STEEL PIPE OD: 406mm ~ 1626mm, WT: 6mm ~ 75mm, LENGTH: 3mtr ~ 12.5mtr SSAW CARBON STEEL PIPE OD: 219mm ~ 4046mm, WT: 3.2mm ~ 40mm, LENGTH: 6mtr ~ 18mtr