介绍《粗直径钢丝绳》国家标准修订的意义和必要性，修订过程和主要的修订内容；
The significance, necessity, process, and main contents of revising National Standard of Steel Wire Rope with Large Diameter were introduced.
介绍《粗直径钢丝绳》国家标准修订的意义和必要性，修订过程和主要的修订内容；
The significance, necessity, process, and main contents of revising National Standard of Steel Wire Rope with Large Diameter were introduced.
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