默认
ACO channel 150x1100x60 H 75 Concrete
ACO channel 150x1100x60 H 75 Vinyl
集水井盖板
ACO channel 300x2000x60 H 110 Resin
ACO channel 300x1500x60 V 110 Resin
ACO channel 300x1500x60 H 110 Vinyl
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~