默认
ACO channel 300x3000x60 V 110 Vinyl
ACO channel 150x1200x60 V 75 Tiles
ACO channel 400x600x200 V 110 Resin
ACO channel 600x900x200 H 110 Vinyl
ACO channel 500x1000x150 V 110 Vinyl
ACO channel 300x600x60 V110 Concrete
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~