LSAW Steel Pipe Manufacturing procedure In order to supply high quality LSAW steel pipe for our clients, we’ve established a highly sound and strenuous pipe production circulation. After the above-mentioned processes, begin the double-sided submerged arc welding. Specifications Range Out Diameter: 219mm-720mm( UOE),406 mm-1625.6 mm( JCOE). Wall Thickness :max 65mm. […]