Shanghai Hong Xu Chemical Technology Co. Ltd. is a professional firm specializes in production of shield tail seal grease and foam agent for the tunnel shield. The production base is located in the science and technology park west in Shanghai chemical industrial zone, and it is a science and technology company assembling scientific research and development, production management and sales, engineering technical services. The company is committed to the underground construction industry technology research and product development, with the independent ability of science and technology R & D and production, in addition, with an active, efficient R & D team: 1 senior engineer, 2 engineers, 4 professional technical personnel, including 1 Ph.D., 2 Masters and 2 Bachelors. The company has cooperated with the strong research team in college of chemistry and chemical engineering of Shanghai Jiao Tong University, strengthened our capacity on international cooperation and technology exchange and absorbed the latest research achievements of France. With advanced equipment and scientific management, the company has constantly developed new products to meet the tunnel development needs of china.

The independent research and development products, including shield tail seal greases for the tunnel shield: BYFYZ-001 and BYFYZ-002 (hand painted type), foam agents for the tunnel shield: BYFPM-010 and BYFPM-011, main bearing sealing grease: BYFZM-020, shield tail emergency sealing grease: BYFJM-030, polymer waterproof pl ing material: BYFP-040, etc., are designed with advanced technology, combining with perfect production equipment and product quality inspection system. Our products had won good reputation from our customers, and the comparison of the company's products with domestic and international similar products has good price advantage. The all shield tail seal greases use non-toxic, harmless, non-corrosive materials, and are fine grain, soft texture, and no damage to the pum