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GB/T 11348.4-2015
机械振动 在旋转轴上测量评价机器的振动 第4部分:具有滑动轴承的燃气轮机组
Mechanical vibration—Evaluation of machine vibration by measurements on rotating shafts—Part 4: Gas turbine sets with fluid-film bearings
GB/T 20970-2015
Petroleum and natural gas industries—Downhole equipment—Packers and bridge plugs
GB/T 32540-2016
Technical requirements for accuracy-controlled gas nitriding heat treatment
GB/T 32529-2016
Technical requirement of cleaning liquid waste recycling and emissions for heat treatment
GB/T 32620.1-2016
Lead-acid batteries used for electric road vehicles—Part 1: Technical condition





