发布时间:2025-01-29 17:52:16
聚乙烯双壁波纹管分为S1型(环刚度≥4KN/㎡)和S2型(环刚度≥8KN/㎡)。一般来讲,无动荷载或管材埋深在0.7-5米左右时,选用S1型即可;有动荷载的情况或管材埋深过浅及过深的情况下,选用S2型。规格有Φ110Φ160Φ200Φ225Φ300Φ400Φ500Φ600Φ700Φ800。
管材为全黑色、外黑内蓝等颜色。
win81 cad2008 64位安装后未注册现象只有30天使用期怎么激活
2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16聚乙烯涤纶高分子耐根穿刺防水卷材07毫米厚重量是多少价格大概是多少施工方法谢谢各位网友
2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16 2025-01-29 17:52:16