The raw materials selected by our company are all the alloy structure steels for geographical usage produced by Baogang Steel. After laboratory tests, both ends of a pipe are upsetted and proceeded to overall heat treatment, then friction welded. Before finished drill pipes are plated and packaged, a series of tests have to be implemented including hardness, metallurgical structure, physical performances, etc. 
Compatible with Vermeer HDD Rigs | Rig Compatibility* | Thread | Length | Pipe OD | Joint OD | Pin Length (mm) | Max. Torque (Nm) | |||
| mm | ft | mm | inch | mm | inch | ||||
| D7x11, D10x15 | #200 | 1,829 | 6 | 42 | 1.66 | 48 | 1.88 | 50.7 | 2,040 |
| D20x22, D23x30 | #400 | 3,048 | 10 | 52 | 2.06 | 57 | 2.25 | 63.5 | 3,525 |
| D24x40 | #600 | 3,048 | 10 | 60 | 2.38 | 67 | 2.63 | 63.5 | 5,695 |
| D33x44, D36x50 | #650 | 3,048 | 10 | 60 | 2.38 | 70 | 2.75 | 63.5 | 6,800 |
| D33x44, D36x50 | #650 | 4,572 | 15 | 60 | 2.38 | 70 | 2.75 | 63.5 | 6,800 |
| D36x50, D40x55 | #700 | 3,048 | 10 | 67 | 2.63 | 79 | 3.1 | 76.2 | 7,457 |
| D36x50, D40x55 | #700 | 4,572 | 15 | 67 | 2.63 | 79 | 3.1 | 76.2 | 7,457 |
| D50x100, D60x90 | #900 | 3,048 | 10 | 73 | 2.88 | 83 | 3.25 | 88.9 | 12,202 |
| D50x100, D60x90 | #900 | 4,572 | 15 | 73 | 2.88 | 83 | 3.25 | 88.9 | 12,202 |
| Rig Compatibility* | Thread | Length | Pipe OD | Joint OD | Pin Length (mm) | Max. Torque (Nm) | |||
| mm | ft | mm | inch | mm | inch | ||||
| JT2720 | 1.94 | 3000 | 9.84 | 60 | 2.38 | 70 | 2.75 | 75 | 4340 |
| JT20 | 1.94 | 3000 | 9.84 | 52 | 2.06 | 67 | 2.63 | 75 | 2980 |
| JT2720M1, JT3020M1 | 2.11 | 3000 | 9.84 | 60 | 2.38 | 76.2 | 3 | 84.7 | 5420 |
| JT25/30 | 2.11 | 3000 | 9.84 | 60 | 2.38 | 70 | 2.75 | 84.7 | 5420 |
| JT4020 | 2.4 | 4500 | 14.76 | 73 | 2.88 | 82 | 3.23 | 99.5 | 6800 |
| JT4020M1 | 2.59 | 4500 | 14.76 | 76 | 3 | 89 | 3.5 | 91.5 | 6800 |
| JT7020M1, JT8020M1, JT100M1 | 3.27 | 4500 | 14.76 | 89 | 3.5 | 102 | 4 | 132.5 | 13,560 |