Fire, water and other fields due to groove connection efficient and solid, labor-saving, space-saving, green, seismic noise reduction and other comprehensive advantages, a great range of subversion of the industry, a large number of alternatives to the screw thread, welding and flange connection. In recent years, groove connection in the mining industry is also increasingly popular in the field, in withstand medium and high pressure, wear and corrosion resistance, to solve the settlement zone and other harsh conditions provide a large number of economic, efficient and reliable solutions, product innovation is more than just, and continue to empower the industry's progress.