2000x2000x100
ACO channel 600x900x200 H 110 Concrete
集水井
ACO channel 300x4000x60 H 110 Resin
ACO channel 600x900x200 H 110 Vinyl
ACO gully 300x300x60 H 110 Concrete
ACO channel 150x1000x60 H 75 Resin
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~