默认
ACO channel 150x1100x60 H 75 Vinyl
ACO channel 150x1100x60 V 75 Tiles
ACO channel 300x4000x60 H 110 Tiles
ACO channel 500x1000x150 H 110 Concr.
ACO channel 300x2000x60 V 110 Concrete
ACO channel 600x900x200 H 110 Tiles
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~