全新升级第三代 防水性：荷叶防水效果>1.0MAP兆帕抗水压 优质原材料：进口聚乙烯颗粒 延伸性强：扯断延长率符合国家标准 柔软易施工：转角上墙好施工 抗穿刺性强 极端环境可适用（-40℃ 至 60℃）：低温不开裂、高温不变形；抗紫外线、抗老化
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