Lero ndiloleni ndikuuzeni zambiri za mtundu waukulu waku China wa PVC: Wanhua.Dzina lake lonse ndi Wanhua Chemical Co., Ltd, yomwe ili m'chigawo cha Shandong ku Eastern China, ndi mtunda wa ola limodzi ndi ndege kuchokera ku Shanghai.Shandong ndi mzinda wofunikira pakati pa gombe la China, malo ochezera a m'mphepete mwa nyanja komanso mzinda woyendera alendo, komanso mzinda wamadoko apadziko lonse lapansi.Wanhua Chemcial idakhazikitsidwa mu 1998, ndipo idapita kumsika mu 2001, tsopano ili ndi malo ozungulira 6 ndi mafakitale, komanso makampani opitilira 10, a 29 pamakampani opanga mankhwala padziko lonse lapansi.Ndi zaka zopitilira 20 chitukuko chothamanga kwambiri, wopanga chimphona ichi wapanga mndandanda wazinthu zotsatirazi: matani 100 chikwi cha PVC utomoni, matani 400 PU, matani 450,000 LLDPE, matani 350,000 HDPE.Ngati mukufuna kulankhula za PV yaku China ...