JJG 52-1999 弹簧管式一般压力表、压力真空表和真空表检定规程 Verification Regulation of Bourdon Tube Pressure Gauge Pressure-Vacuum Gauge and Vacuum Gauge for General Use
本标准被JJG 52-2013代替
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300 k | 2021-07-28 | |
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300 k | 2021-07-28 | |
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300 k | 2021-07-28 | |
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300 k | 2021-07-28 | |
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300 k | 2021-07-28 | |
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300 k | 2021-07-28 | |
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300 k | 2021-07-28 | |
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300 k | 2021-07-28 |
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