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雨水检查井-方形1
ACO channel 150x1400x60 V 75 Resin
ACO channel 600x900x200 V 110 Concrete
ACO channel 400x600x100 V 110 Tiles
ACO channel 300x3000x60 V 110 Tiles
ACO channel 150x800x60 H 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~