A cikin 'yan shekarun nan, ci gaban masana'antar PVC ya shiga rashin daidaituwa tsakanin wadata da buƙata.Za a iya raba zagayen masana'antar PVC ta kasar Sin zuwa matakai uku.1.2008-2013 High-gudun girma lokaci na masana'antu samar iya aiki.2.2014-2016 samar da damar janye lokaci2014-2016 samar da damar janye lokaci 3.2017 zuwa halin yanzu samar da ma'auni, rashin daidaituwa tsakanin wadata da bukata.
