默认
ACO channel 400x600x200 V 110 Concrete
ACO channel 400x600x200 V 110 Vinyl
ACO channel 150x1400x60 V 75 Concrete
ACO channel 600x900x200 H 110 Resin
ACO channel 300x2000x60 H 110 Vinyl
ACO channel 300x2000x60 V 110 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~