www.bzfxw.comICS13.060.10CCSP40DB21辽宁省地方标准DB21/T3976—2024农村集中供水工程水价测算导则Guidelinesforwaterpricecalculationofruralcentralizedwatersupplyprojects2024-06-30发布2024-07-30实施辽宁省市场监督管理局发布www.bzfxw.comwww.bzfxw.comDB21/T3976—2024I目次前言..................................................................................II1范围............................................
