A cikin 'yan shekarun nan, ci gaban masana'antar PVC ya shiga cikin rashin daidaito tsakanin wadata da buƙata. Zagayen masana'antar PVC na China za a iya raba shi zuwa matakai uku. 1.2008-2013 Lokacin haɓaka mai sauri na ƙarfin samar da masana'antu. 2.2014-2016 Lokacin janye ƙarfin samarwa 2014-2016 Lokacin janye ƙarfin samarwa 3.2017 zuwa lokacin daidaita samar da kayayyaki na yanzu, rashin daidaito tsakanin wadata da buƙata.
