| 1. | Standard specification for hot - formed welded and seamless carbon steel structural tubing 热成型焊接与无缝碳素钢结构管标准规范 |
| 2. | Aerospace ; seamless structural tubes in steel and nickel alloys ; technical specification 航空航天.钢和镍合金无缝结构管材.技术规范 |
| 3. | Standard specification for hot - formed welded and seamless high - strength low - alloy structural tubing 热塑焊接和无缝高强度低合金结构钢管的标准规范 |
| 4. | Specification for cold - formed welded and seamless carbon steel structural tubing in rounds and shapes 圆钢与型钢的冷变形焊接与无缝碳素钢结构管规范 |
| 5. | Standard specification for cold - formed welded and seamless carbon steel structural tubing in rounds and shapes 圆形与异型冷成型焊接与无缝碳素钢结构管标准规范 |
| 6. | Aerospace ; seamless structural tubes in wrought aluminium alloys ; technical specification ; inactive for new design 航空航天.锻铝合金无缝结构管材.技术规范.不适用于新 |
| 7. | Standard specification for cold - formed welded and seamless high - strength , low - alloy structural tubing with improved atmospheric corrosion resistance 提高耐大气腐蚀性的冷成型焊接和无缝高强度低合金结构管道用标准规范 |
| 8. | In addition , the author describes how to set up the basic process parameters of heat treatment with protective atmosphere , and gives us case analysis concerning protective atmosphere heat treatment of automobile tube , precision structural tube and power station boiler tube 介绍了保护气氛热处理主要工艺参数的确定及汽车用管、精密结构用管、电站锅炉用管的保护气氛热处理实例分析。 |