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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 2423.53-2005 |
Environmental testing for electric and electronic products-Part 2:Test methods-Test Xb:Abrasion of markings and letterings caused by rubbing of fingers and hands 电工电子产品环境试验 第2部分:试验方法 试验Xb：由手的磨擦造成标记和印刷文字的磨损 |
China National Standards fingers |
 English PDF |
| GB/T 7423.3-1987 |
Heat sink of semiconductor devices--Heat sink， staggered fingers shapes 半导体器件散热器 叉指形散热器 |
China National Standards fingers |
English PDF |
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