ʻO ka haku mele a me nā waiwai o ka plastik lāʻau PVC.ʻO ka pauka lāʻau PVC a me ka fiber lāʻau a me ka hoʻopiha piha ʻana (calcium carbonate), lubricant, stabilizer, foaming agent, foaming regulator, toner a me nā mea hoʻohui e pili ana (plasticizer, toughening agent, coupling agent), etc. 1, resin domest...
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