Our thread drill pipe rods are made from advanced high precision, high performance and high efficiency forging equipment with the advanced manufacturing technology and first-class production line. The main processing equipment including the imported CNC lathe for thread machining and vertical CNC machining center. The raw material is supplied by national top level steel manufacturers.
All R arcs are CNC machined. We pay high attention to all these easily ignored details, such as premium alloy steel made joints, strictly controlled heat treatment process and standard API thread processing technology, to ensure pipe stability and thread durability.