TF-LOK.TF-LOK was established on December 3, 2015, with its registered location in Funing Economic Development Zone. The company operates two factory sites covering over 70 acres, with a total construction area of 40,000 square meters. TF-LOK specializes in manufacturing thousands of product categories, including high- and medium-pressure instrument valve series, cryogenic insulated cylinder valves, LNG supporting valve series, cryogenic valves for storage and transportation equipment, air distribution valve sets, pipe fittings and flanges, high-temperature and high-pressure multi-material forged steel valves, and semiconductor microelectronics valves. Widely applied in petroleum, chemical, power generation, aerospace, semiconductor manufacturing, and various equipment laboratories, TF-LOK has earned extensive acclaim and trust from industry peers and customers. Continuously expanding its market reach, the company's products are exported to North America, the European Union, the Middle East, Southeast Asia, and other regions. TF-LOK possesses comprehensive valve design and manufacturing expertise, supported by specialized laboratories and diverse testing equipment. All machining is computer-controlled, utilizing CNC lathes, composite turning and milling centers, vertical machining centers, CNC laser systems, and other precision equipment. Accurate physical/chemical, non-destructive, and metrological testing equipment includes optical profilometers, Rockwell hardness testers, Vickers hardness testers, Leeb hardness testers, direct-reading spectrometers, portable spectrometers, material testing machines, tool microscopes, impact testers, and ultrasonic flaw detectors. Functional testing equipment comprises pneumatic seal test benches, medium/high-pressure liquid test benches, vibration testers, pressure pulse dynamic testers, valve life testers, and helium mass spectrometer leak detectors. Primary product lines include: Fitting series Ball valve series Needle valves Proportional relief valves Ultra-high pressure series Check valves Cryogenic LNG valves Forged steel valves Valve assemblies Cylinders Filters Air source distributors Drain valves Pressure regulators Relief valves Plug valves