Established in 2005. Shanghai NSJ Hardware Factory is a high-tech enterprise specializing in R&D and production of AB caulking guns, AB cartridges, mixing tips and other related products. Products are widely used in home decoration materials, dental, building fastening, electronic adhesive, spraying materials and automotive seals and many other fields. After years of continuous innovation and R&D investment, NSJ's caulking guns, dual cartridge, mixing tips and other products enjoy a good reputation in the world. Shanghai NSJ always pays attention to the market demand, continuously develops and innovates, and provides Chinese two-component packaging system and solutions for global customers.