标准
ACO channel 300x3000x60 H 110 Tiles
ACO channel 500x1000x150 H 110 Concr.
ACO chanel 300x600x60 H 110 Vinyl
ACO gully 150 H 75 Vinyl
ACO channel 300x1000x60 V 110 Resin
ACO channel 150x1400x60 V 75 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~