默认
ACO channel 400x400x100 V 110 Concrete
ACO channel 500x500x100 V 110 Vinyl
ACO channel 500x500x100 H 110 Vinyl
扇形135°检查井
ACO channel 500x800x150 V 110 Vinyl
ACO channel 150x1000x60 V 75 Vinyl
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~