GB/T 4458.6-2002
ActiveMechanical drawings--General principles of presentation--Sections
机械制图 图样画法 剖视图和断面图
📝 Foreword / 前言 ai_extracted
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📚 References & Relations / 引用与关联
normative_reference
GB/T 13361
normative_reference
GB/T 14609.
normative_reference
GB/T 4458
normative_reference
ISO 10209-1
Content extracted by AI. Not officially verified.