Baoding Zhongze (Manufacturer) I/E Co., Ltd. was established in 2006. Through years' development with industrious and dedicated efforts of all our staffs, our company has become one of the largest strength suppliers for any valued customers. Our professional products as follow: PVC-U Tube and Fittings series for drainage system; PP-R tube and Fittings series for water supply system; PB tube and Fittings series for water supply system; PE-RT tube and Fittings series for Floor Heating ...