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产品规格
功能特点
透气帽 (PVC-U)
50 mm
75 mm
110 mm
160 mm
耐腐蚀性强;
内壁光滑,摩擦阻力小;
无侵蚀及收缩变化;
款式繁多、齐全,可适合各种设计及安装要求;
重量为铸铁管的五分之一,易于运输和操作;
无味、无嗅、无毒,可耐广泛的化学物品;
抗白蚁、耐风化;
价格低廉,正常使用条件下寿命可达50年以上。