drill pipe

Drill pipe, drill collar, heavy weight drill pipe, Kelly, drill stem sub To ensure the quality, Uno-steel made a huge investment for equipment and includes the full production program as upsetting-Full Length Pipe Heat Treatment (austenitizing furnace-H20 External Quench-Tempering)-struightening-Full Length Pipe. Inspection-friction weld (produced by MTI,in USA)-weld zone. Heat treatment etc. all these important machines. And all the products will pass through very strict quality inspection equipments and quality control system. Uno-steel established a full series quality control system. Uno-steel established a full series quality control team, equipments and system; also installed quality testing and inspection equipment for wet fluorescent inspection, ultrasonic shear wave inspection, Hardness inspection, UT wall thickness inspection, Tool Joint Alignment inspection, Screw Threading inspection ETC. Uno-steel also has a complete and professional laboratory which can help the technology R&d.