HY-550 CPVC solvent cement provides outstanding flame retardancy for fire sprinkler pipelines. Heavy bodied & medium set, long 2-year shelf life, trusted adhesive for fire piping construction. Headquartered in Shunde, Foshan, Foshan Shunde Guanye Building Materials Industrial Co., Ltd. owns the self-operated brand H&Y Hongye, which was launched back in 1996. For nearly three decades, the company has specialized in the research, development and production of pipe supporting