Baoji Thread Gages Co., Ltd.

Baoji Thread Gages Co., Ltd. (brand name: SRT Gage) is a China-based manufacturer of precision petroleum thread gauges founded in September 2007 in Baoji, Shaanxi Province. With a registered capital of 5 million RMB and total investment exceeding 30 million RMB, the company is the only domestic Chinese enterprise dedicated exclusively to the production of petroleum-specific thread gauges, oil pipe gauges, and special-connection thread gauges. The company is equipped with more than 30 sets of CNC lathes, milling machines, grinders, CMM coordinate measuring machines, and imported Matrix CNC thread grinding machines and German Zeiss three-coordinate measuring machines, enabling an annual production capacity of 2,500 sets of thread gauges. With over 50 employees including senior engineers with 30+ years of experience, the technical team has participated in drafting and reviewing API SPEC 7-2 and API SPEC 5B standards. Baoji Thread Gages holds dual API licenses (API SPEC 7-2-0680 and API SPEC 5B-0032), covering gauges for rotary shouldered drill string connections and casing/tubing thread systems. Products are supplied to major Chinese oilfield operators including CNOOC, Sinopec Shengli Oilfield, and PetroChina Huabei Oilfield, and exported globally to customers in Asia, Africa, Latin America, Europe, the Americas, and Oceania, including Weatherford and MTQ Oilfield Services.