默认
ACO channel 500x1000x150 V 110 Resin
ACO channel 300x1000x60 H 110 Tiles
集水井盖板
ACO channel 500x1000x150 H 110 Concr.
ACO channel 400x600x200 V 110 Resin
检查井+二管+φ750+
请描述当前构件存在的具体质量问题,以便我们可以尽快帮您解决~