河北省各地市公路材料单价使用说明1、依据《河北省公路工程基本建设项目概算预算编制补充规定》（冀交基〔2019〕179号）文件第二条第（二）款规定，“省公路工程定额站定期调查公布公路材料价格信息,供有关单位编制概预...

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