发布时间:2025-01-30 10:38:47
一般就是说质量,s1一般指环刚度4kn,
s2一般指环刚度8kn。但是好多厂子出的企标管子到不了
厕所墙面地面做了防水墙面还沁水装修师傅说是从墙角沁进去的像这样可以叫他返工吗
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