Baoji Thread Gages limited liability company was founded in September 2007 with a registered capital of 1,000,000 USD, the company's total investment of 5,000,000 USD, is the only one to focus on manufacturing all kinds of API thread gauge and a variety of the special deduction thread gauge technology-based Manufacturing enterprises. the Company has API certification through the American Petroleum Institute (API SPEC 7-2-0680, API SPEC 5B-0032) is a few domestic sales of petroleum thread gauge industry have this certification, production, sales as one of professional manufacturing company. has a perfect quality assurance system, strict scientific management system, and through domestic ISO 9001:2008-UQ090985R0 quality system certification.