About 317
T-ONE-S (MFT) TRADING INC., founded in 1968, specializes in manufacturing and supplying a wide range of metal valves, fittings, flanges, and boiler accessories. Our products are widely used in petroleum, chemical, metallurgy, power generation, construction, heating, water supply and drainage, water treatment, pulp & paper, and textile finishing industries. Under the T-ONE-S (MFG) and [317] brands, we market our products worldwide.
Our product range encompasses a variety of materials, including bronze, brass, cast iron, WCB, and stainless steel. Product lines include safety valves, ball valves, gate valves, globe valves, check valves, butterfly valves, float valves, needle valves, pressure-reducing valves, wafer check valves, diaphragm valves, pneumatic control valves, solenoid valves, electric actuators, pneumatic actuators, expansion joints, and pipe fittings. Threaded ends comply with BSPT, NPT, and DIN standards, while flanged ends conform to JIS, ANSI, BS 4504, PN10, and PN16 specifications.
The associated company, Pro Uni-D Taiwan, established in 1988, specializes in the production of solenoid valves and electric actuators, holding multiple patents, as well as certifications from UL, CE, CAS, and ISO 9001. As technology advances and industries become increasingly specialized, the demands on valves for various fluids, temperatures, and pressures have become more stringent. We continue to enhance our manufacturing technology, adopt new materials, and apply precision processes to improve accuracy, durability, and stability.
We have always adhered to the principle of “Efficiency and Precision”, operating under the ISO 9001:2015 quality assurance system to continuously optimize production processes, ensuring stable quality, competitive pricing, and fast delivery. Customer satisfaction and trust remain our greatest motivation. TONES is committed to providing professional advice, high-quality products, and continuous improvements in efficiency and production systems, creating greater value for customers worldwide.
