2000x2000x100
ACO channel 500x500x100 H 110 Tiles
集水井盖板-双孔
ACO channel 150x800x60 H 75 Concrete
ACO channel 400x400x200 V 110 Resin
ACO channel 400x600x100 H 110 Vinyl
ACO channel 150x800x60 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~