api 5l x80hot roll seamless steel tube
API 5L Pipe Specifications (Seamless and Welded ) - Enpro PipeAPI 5L Pipe Specifications. API 5L Pipe have two product specification level, PSL1 and PSL2, and there are differences for the two levels in each grade. Manufacturing Types in Seamless, ERW, LSAW, SSAW, HSAW, DSAW. API 5L Pipe in Seamless ...