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GB/T 24171.2-2009
金属材料 薄板和薄带 成形极限曲线的测定 第2部分:实验室成形极限曲线的测定
Metallic materials - Sheet and strip - Determinations of forming limit curves - Part 2: Determinations of forming limit curves in laboratory
GB/T 15910-2009
Monitoring and testing for energy saving of heat-transmission and distribution system
GB/T 5132.1-2009
Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes - Part 1: General requirements
GB/T 5132.5-2009
电气用热固性树脂工业硬质圆形层压管和棒 第5部分:圆形层压模制棒
Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes - Part 5: Round laminated moulded rods
GB/T 23909.1-2009
Non-destructive testing - Radioscopic testing - Part 1: Quantitative measurement of imaging properties