Weifang Qiangyuan Chemical Group Located in Binhai Economic Development Zone, Weifang, Shandong, CHINA which is famous for the Kites world, to south of Laizhou Bay, Bohai shore, a very manufacturer estiblished 1997 produce HCPE, CPVC, Impact Modifier CPE 135 A, CPVC GRANULE, PVC GRANULE and ...