默认
ACO channel 150x900x60 H 75 Vinyl
ACO channel 400x600x200 V 110 Concrete
ACO channel 400x400x200 H 110 Resin
集水井
ACO channel 150x900x60 V 75 Concrete
ACO channel 400x400x100 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~