Guangdong Hualongyicheng New Mea Tekonolosi Co., Ltd. o se tasi o le lalolagi taitaiina gaosi oloa e taulaʻi atu i le gaosiga, faatauina, R&D o fou PVC mea faaopoopo, e aofia ai siosiomaga Friendly Stabilizer, PVC gaosi Fesoasoani, PVC Aʻafiaga Suʻesuʻega, Foaming Agent, PVC Foaming Regulator, ...
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