原始/回收尼龙塑料原料PA12 GF30/CF30/FR PA12颗粒Virgin/Recycled Nylon Plastic Raw Materials PA12 GF30/CF30/FR PA12 Granules 原材料/再生尼龙塑料原材料PA12 GF30/CF30/FR PA12颗粒 用于刮水器系统的原材料PA12颗粒GF30尼龙12