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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| HB 8423.4-2017 |
Methods for identification of metal material grades Part 4: Identification of stainless steel and heat-resistant steel grades by reading spectra {译} 金属材料牌号鉴别方法 第4部分：看谱法鉴别不锈钢和耐热钢牌号 |
China Aviation Industry
Standards Methods identification metal |
 English PDF |
| HB 8423.3-2017 |
Methods for identification of metal material grades Part 3: Identification of alloy structural steel grades by looking at spectra {译} 金属材料牌号鉴别方法 第3部分：看谱法鉴别合金结构钢牌号 |
China Aviation Industry
Standards Methods identification metal |
English PDF |
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