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检查井污水井
ACO channel 400x400x100 H 110 Resin
ACO channel 150x800x60 H 75 Concrete
ACO channel 400x600x200 H 110 Concrete
ACO chanel 300x600x60 V 110 Resin
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~