We are Zhongzheng Engineer Group based in Shanghai, China. We are member of TradeKey.com since June, 2012. Our business is related to Construction & Real Estate industry and we specifically deal in ppr pipe,pex pipe,pert pipe. Please find our product details below:ppr fittingCertificate & StandardISO9001:2000 Standard Ceryifocateproduct Standard:GB/T 11618.2-2008Provide OEM service according to standard GB/ASTM/ASME/DIN/JIS as per customer's requirementspex-al-pex pipeResistant to corrosion and to the proliferation of micro organism such as bacteria, algae;Pex which is certificated by CE and ISO meet the international standardThank you for taking time to go through our business profile. If there are any questions, inquiries or comments, please feel free to contact us.