JK-1
ACO channel 150x1100x60 H 75 Vinyl
ACO gully 200 V 75 Tiles ss airtrap
ACO channel 500x500x100 H 110 Tiles
ACO gully 150 H 75 Concrete
ACO gully 200x200x60 V 75 Resin
ACO channel 300x3000x60 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~