... , pex, pex-al-pex, pap, pe-rt, evoh pipe and fittings, biggest factory in DIAN KOU, China Zhongde Ruri PP-R ... of 30 provinces,city and municipality.Zhejiang Zhongde Ruri Pipe Co.,Ltd belongs to Executive Director Unit of Water-heating association,the ... lot of support and jointed actively.zhejiang zhongde ruri pipe co,.ltd was one of the few eligible company in 3 times ...