Shijiazhuang Chang 'an Dongsheng Pipe Fittings Factory purchased Jia Wei sprinkler fittings. Zhang Baozhu, the operator, was established on 200 10509 in Chang 'an District, Shijiazhuang City, Hebei Province, and his business scope is lathe processing and retail. In addition to the need for environmental protection permits, the need for special approval, without approval shall not operate.