THÔNG SỐ KỸ THUẬT:
| Côn thu ren | Size (Inch) | Dimensions (mm) |
| (mm.) | (Inch) | A |
| 3/4X1/2 | 20X15 | 38 |
| 1X3/8 | 25X10 | 42 |
| 1X1/2 | 25X15 | 42 |
| 1X3/4 | 25X20 | 42 |
| 11/4X1/2 | 32X15 | 48 |
| 11/4X3/4 | 32X20 | 48 |
| 11/4X1 | 32X25 | 48 |
| 11/2X1/2 | 40X15 | 52 |
| 11/2X3/4 | 40X20 | 52 |
| 11/2X1 | 40X25 | 52 |
| 11/2X11/4 | 40X32 | 52 |
| 2X1/2 | 50X15 | 58 |
| 2X3/4 | 50X20 | 58 |
| 2X1 | 50X25 | 58 |
| 2X11/4 | 50X32 | 58 |
| 2X11/2 | 50X40 | 58 |
| 21/2X11/4 | 65X32 | 65 |
| 21/2X11/2 | 65X40 | 65 |
| 21/2X2 | 65X50 | 65 |
| 3X11/2 | 80X40 | 72 |
| 3X2 | 80X50 | 72 |
| 3X21/2 | 80X65 | 72 |
| 4X2 | 100X50 | 85 |
| 4X21/2 | 100X65 | 85 |
| 4X3 | 100X80 | 85 |
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