ซัพพลายเออร์ที่มีใบอนุญาตการทำธุรกิจ
ซัพพลายเออร์ที่ผ่านการตรวจสอบแล้ว DTH drill pipe is mainly used for rock crushing, anchoring drilling, geothermal air conditioning hole, water well drilling, etc. Materials are purchased from well-know large enterprise of domestic. The ends of pipe are IU processed, then temered after friction welding. Drill pipe joints are quenched and tempered after rough machining, and surface nitriding treatment after finishing, that makes the joints more wear-resistant and easy to disassemble without thread sticky, breaking and cracking. Precision imported CNC lathes and customized forming cutters are used for thread processing. All threads are equipped with thread gauges that meet international standards. All process extended service life of drill pipe, the quality is stable and reliable.DTH drill pipe is mainly used for rock crushing, anchoring drilling, geothermal air conditioning hole, water well drilling, etc. Materials are purchased from well-know large enterprise of domestic. The ends of pipe are IU processed, then temered after friction welding. Drill pipe joints are quenched and tempered after rough machining, and surface nitriding treatment after finishing, that makes the joints more wear-resistant and easy to disassemble without thread sticky, breaking and cracking. Precision imported CNC lathes and customized forming cutters are used for thread processing. All threads are equipped with thread gauges that meet international standards. All process extended service life of drill pipe, the
quality is stable and reliable.
| DTH drill pipes specifications | ||||
| Outer diameter | Thread | Wall thickness mm |
Length mm |
|
| mm | inch | |||
| 76 | 3 | API 2 3/8 REG |
4.0 6.3 |
1000-6000 |
| 89 | 3 1/2 | API 2 3/8 IF | 4.0 6.3 8.56 |
1000-6000 |
| 102 | 4 | API 2 7/8 IF | 6.3 8.56 |
4000-6000 |
| 108 | 4 1/4 | API 2 7/8 IF | 8.0 | |
| 114 | 4 1/2 | NC35 | 6.3 12.5 |
4000-9000 |
| 127 | 5 | NC38 | 6.3 12.5 |
4000-9000 |
| 140 | 5 1/2 | NC46 | 8.8 12.5 |
4000-9000 |
Shijiazhuang WeiLiDa Prospecting Machinery Co., Ltd. is a professional manufacturer of drill pipe, drilling rig and other drilling tools. Our factory is located in Jinzhou, Shijiazhuang . 200 km from the capital Beijing. We have good export conditions to Tianjin port and Huanghua port. Our factory covers an area of 20000 square meters. Its total assets is 50 million yuan.
Our company has advanced friction welding, drill pipe thickening equipment and a variety of molding technology and processing equipment. According to the customer's requirements, we can produce various specifications of the drill pipe and connecting parts of the United States standards. At the same time, we are also equipped with a set of physical and chemical testing machine on the hydraulic pressure, heat treatment, no damage, etc. to ensure the quality of products. At the beginning of the establishment, we passed the certification of CQC and ISO9001. Through years of manufacturing experience and customer's use of reflection, the application, safety and reliability of the domestic industry of our products have reached a leading level. We adhere to the "quality first, reputation first" business philosophy. We do our best to meet the customers' need .We are very pleased to establish a long-term business relationship with you on the basis of mutual benefit. We believe that we will be your best partner in China.Related Products
1. What about the warranty time?
A:15 days
2. What about the delivery time?
A:10-15days after receiving the deposit.
3.What kind terms of payment can be accepted?
A: T/T term, 30% down payment is required in advance, and 70% balance shall be before shipment
4.What logistics ways we can work for shipment?
A: We can ship machine by sea and road.
ซัพพลายเออร์ที่มีใบอนุญาตการทำธุรกิจ
ซัพพลายเออร์ที่ผ่านการตรวจสอบแล้ว 
