Established in 1986, our factory produces a high-temperature anti-burn agent for bolts, the GF-1 High-Temperature Anti-Burn Agent for Bolts, which marked the end of industrial high-temperature equipment needing "bolt protective agents." After one year of user trials and sampling inspections by scientific research departments, the product passed the quality certification by Hebei Provincial Science and Technology Commission and Cangzhou City Standardization and Metrology Bureau in December 1987. In 1991, we further developed the GR-9 and GR-12 anti-burn agents, making our product line more comprehensive, expanding its application from petrochemicals, chemical fibers, thermal power, chemical industry, and fertilizers to rail locomotives and metallurgy. In 2006, we developed and produced the 767 Silver-based High-Temperature Anti-Galling Agent, Heat Treatment Protective Agent, High-Temperature Copper Paste, and Cu-a Copper-based Anti-Galling Agent. In 2009, we produced metal heat treatment protective agent products. Our company has been rated as a "Product of Quality Assurance" by Cangzhou City Technical Supervision Bureau for five consecutive years and is a protected enterprise in Dongguang County. We currently have fixed assets of 500,000 yuan and 116 employees, including 2 senior engineers and 4 engineers, with a Technical Development Department responsible for new product development, technology transfer, and solving production challenges for customers. In 2003, we reorganized to establish Tongyu Chemical Co., Ltd., located in the southern part of Cangzhou, the hometown of martial arts, adjacent to the Bohai Bay and Tianjin, with easy access to the Jinghu Railway and Jingfu Highway passing through our front gate. Situated in the prosperous Bohai Bay Economic and Technological Development Zone, we warmly welcome friends from home and abroad and sincerely seek cooperation with all parties for common development.