部分标准内容:
中华人民共和国G家计量技术规范JJF1372-2012
贯入式砂浆强度检测仪校准规范Calibration Specification for Instrument of TestingMortar-strength by Penetration Resistance Method2012-12-12发布
2013-03-12实施
G家质量监督检验检疫总局发布JJF1372—2012
贯入式砂浆强度检测仪校准规范Calibration Specification forInstrument of Testing Mortar-strengthby Penetration Resistance Method归口单位:全...................
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