I ka hoʻomaka ʻana o ka ʻenehana ʻili PVC, ʻoi aku ka lōʻihi o nā ʻoihana ʻili synthetic home ma hope o ʻEulopa.Akā i ka noiʻi ʻana a me ka noi ʻana o ka ʻili synthetic PU, mālama mākou i ka ʻenehana loea honua ma ka hoʻomaka ʻana i ka wā mua, kahi kiʻekiʻe e hoʻomaka ai, ka wikiwiki o ka ulu ʻana, a ua lilo i kikowaena o ka ʻili synthetic PU ma Kina.