MAφ114mm~φ273mm seamless steel pipe production equipment includes a billet sawing machine, 16m rotary heating furnace, conical piercing machine, Accu-Roll rolling mill, 8-stand three-roller micro-tension size reducing mill, step-by-step cooling bed, six-roller straightening machine, high-efficiency pipe cutting machine, 180mm automatic magnetic flux leakage flaw detection equipment, 80MPa hydraulic testing machine and length measuring, weighing, spraying, laser marking, bundling equipment, etc.