... Certificate:API.ISO 2. High quality oil well drill pipe Specificationsoil well drill pipe 1) OD: 10-1200mm 2) Thickness:1 ... Apply to transport of the oxygen,water,oil Productionoil well drill pipeStandardAPI SPEC 5L (PSL1/PSL2)Size StandardASME, ... painting, plastic caps, bevel edge, antiseptic treatmentManufacturing methodSeamless. Welded (ERW, SAW (SAWL, SAWH))ApplicationTransmission of oxygen,water, ...