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JJF 2011-2022
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JJF 1138-2005
铣刀磨后检查仪校准规范
Calibration Specification for the Testers of Sharpened Milling Cutter
2005-10-09
JJF（机械) 1007-2018
风量试验室校准规范
Calibration Specification for Industrial Fan Performance Test Apparatus
2018-04-30
DL/T 681.3-2020
燃煤电厂磨煤机耐磨件技术条件 第3部分:风扇磨 冲击板、护钩和护甲
Specification for wear-resistant parts of coal mill in coal-fired power plants-Part 3: Fan mill-Impacting plate, supporting hook and armor