Inspired by a common desire to build up "one stop solution" of HDPE installation tools, the owner Mr. Chan created "RIYANG" welding in 2006. When look back, the strong and clear idea "the industry of polyethylene pipelines will be growing exponentially in the next few years and so the need for HDPE welding equipments" brings "RIYANG" to nowdays. We are proud of being a growing manufacturer and supplier in plastic pipe welding industry.