YT-LOK was founded in 2000 and has research and development centers, production centers, and warehousing and distribution centers in the United States and China. As one of the world's most important manufacturers of pipe and valve components, we focus on producing and designing high-quality valves and fittings, providing customers with high-quality and reliable products and services. YT-LOK products serve industrial fields such as petroleum, chemical, natural gas, metallurgy, analytical instruments, process instruments, biopharmaceuticals, power, papermaking, food, shipbuilding, and semiconductors. YT-LOK has obtained ISO: 9001 quality system certification, ISO14001 environmental management system certification, DNV certification, and pressure vessel license. In China, YT-LOK is a member unit of Sinopec's resource market, PetroChina's resource market, CNOOC's resource market, China National Chemical Corporation's supplier member, and natural gas Group company supplier market unit. Advantages of YT-LOK: ⑴ Designed, manufactured, and tested to the highest industry standards. For example, the raw material is made of specially customized 316 stainless steel; The threads comply with ASME standards, and the surface of the processed threads is smooth, which improves the sealing performance, reduces the friction during installation, and reduces the possibility of thread biting; Each valve is subjected to a sealing test with nitrogen gas at its rated working pressure (not exceeding 6000 PSI). 2) Thanks to the ERP management system and professional service team, we are able to provide customers with a one-stop solution. 3) Adequate inventory of raw materials and products ensures the fastest delivery time. 4) We have a comprehensive after-sales service system and have established offices in major cities across the country. YT-LOK has always been committed to promoting continuous improvement in product design, manufacturing, and testing processes, and is committed to providing customers with the best quality and service.