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玻璃鋼管道防腐-金悅科技
玻璃鋼管主要以玻璃纖維及其制品為增強材料，以高分子成分的不飽和聚脂樹脂、環氧樹脂等材料纏繞制作而成。玻璃鋼管道安裝與施工 		2020-12-18
道牙收水口-金悅科技
雨水口易被路面垃圾和雜物堵塞，平箅雨水口在設計中應考慮50%被堵塞，立箅式雨水口應考慮10%被堵塞。在暴雨期間排除道路積水的過 		2020-12-18
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