ISO general purpose metric screw threads - Tolerances - Part 5: Limits of sizes for internal screw threads to mate with hot-dip galvanized external screw threads with maximum size of tolerance position...
中国标准分类号： J(机械) ； J04(基础标准与通用方法)
Insulation coordination for equipment within low-voltage systems – Part 3: Use of coating, potting or moulding for protection against pollution
中国标准分类号： J(机械) ； J00/09()
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