1.PVC resin pauka ʻO ia ka mea maka mua, kumu kumu hoʻohāhā, e hana ana i ka pepa foamed PVC e hoʻohana maʻamau i ka resin SG-8 PVC.I ka hana ʻana, wikiwiki ka wikiwiki o ka gelatinization, haʻahaʻa haʻahaʻa ka mahana o ka hana, paʻa ka maikaʻi o ka huahana, a maʻalahi ka maʻalahi o ka c...
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