| 1. | Mechanical tube , automobile semi - axle sleeve tube 结构用管汽车半轴套管 |
| 2. | Standard specification for welded stainless steel mechanical tubing 焊接的不锈钢机械管用标准规范 |
| 3. | Standard specification for seamless stainless steel mechanical tubing 无缝不锈钢机械管道的标准规范 |
| 4. | Standard specification for cold - drawn buttweld carbon steel mechanical tubing 冷拉对缝焊碳素钢机械管的标准规范 |
| 5. | Standard specification for seamless carbon and alloy steel mechanical tubing 无缝碳素钢与合金钢机械管用标准规范 |
| 6. | Mechanical tube length 机械筒长: 160mm |
| 7. | Standard specification for electric - resistance - welded metallic - coated carbon steel mechanical tubing 金属涂覆电阻焊接碳素钢机械管道的标准规范 |