Beijing Songtiancheng Technology Co.,Ltd.was established in 2000 and is located in Fangshan Park,Zhongguancun,Beijing.We have been dedicated to the research and development and pro- duction of polyethylene(PE)valves and other components for municipal pipe networks.We are a national high-tech and Zhongguancun high-tech enterprise,as well as a Beijing specialized,re- fined,distinctive and innovative enterprise.Our company holds special equipment production qualifications and national laboratory ...