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根据国家技术监督局批复的机械行业标准归口管理范围,机电部批准、发布了机械行业标准。1.机械行业标准代号:强制性标准代号为JB,推荐性标准代号为JB/T。2.由于机械行业标准与原机械
According to the scope of the mechanical industry standards approved by the State Bureau of Technical Supervision, the Ministry of Mechanical and Electrical Affairs approved and issued the mechanical industry standards. 1. Machinery industry standard code: The mandatory standard code is JB, and the recommended standard code is JB/T. 2. Due to mechanical industry standards and original machinery