Groove Tube: is a new type of steel pipe connecting pipe, also called clamp connections, has many advantages. Groove Tube connection technology, also known as clamp connection technology, has become the most important technology of the current liquid, gas pipe connections. Applications connecting pipe trench technology, the process becomes complex piping connections simple, fast, and convenient. Pipeline connection technology makes a big step forward. Original properties are not affected pipe connection pipe trench, only the outer surface of the pipe being connected roller slot machines a groove extruded without destroying the structure of the pipe wall, which is connected to pipe trench unique technical advantages. If using the traditional welding operation, many of the inner wall of the pipe coating done will be destroyed. So specification galvanized pipes, plastic-lined steel pipe, plastic composite pipe and so should not be used for welding and flange connection, or need secondary treatment. We Law on "science and technology, quality of life, integrity and development" business purpose, sincerely hope to cooperate with the community units, for a better tomorrow. Ze billion Pipe Co., Ltd. Weifang staff welcome you soon. http://www.wfyzgy.com Tel: 18105368777