Large diameter pipe thread CNC lathe manufacturer Qingdao Star Machine Technology Co., Ltd. delivers heavy-duty solutions for OCTG machining up to 20 inches. Engineered for oil & gas casing, water well casing, and piling pipes, our large bore CNC lathes feature rigid slant-bed structures, high-torque spindles, and Fanuc/Siemens control systems. Precision threading complies with API 5B/5CT standards. Ideal for end-facing, beveling, and threading in one chucking. Request a factory quote today: info@starmachinechina.com.
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