耐热聚乙烯（PE-RT）直埋保温供热管道技术规程 (DBJ04/T 318-2015)
耐热聚乙烯(PE-RT)直埋保温供热管道技术规程Design and engineering technical code for the high density Polyethylene of raised temperature resistance (PE-RT insulated pipes of heating supply pipeline2015-11-23发布2016-02-01实施山西省住房和城乡建设厅发布前言根……