ซัพพลายเออร์ที่มีใบอนุญาตการทำธุรกิจ
ซัพพลายเออร์ที่ผ่านการตรวจสอบแล้ว 
| Diameter | Length | Connection | Wall thickness | |||
| mm | inch | mm | Foot | mm | inch | |
| 50 | 1.969 | 500~3000 | 1.64~9.85 | As Request | 5~8 | 13/64~5/16 |
| 60 | 23/8 | 1000~4500 | 33/8~143/4 | T42*10*2 | 5~8 | 13/64~5/16 |
| 73 | 27/8 | 1000~4500 | 33/8~143/4 | API 23/8REG | 5~8 | 13/64~5/16 |
| 76 | 3 | 1000~4500 | 33/8~143/4 | AP 123/8REG | 5~8 | 13/64~5/16 |
| 89 | 31/2 | 1000~7620 | 33/8~25 | API 23/8REG/IF | 5~12 | 13/64~15/32 |
| 102 | 4 | 1000~9140 | 33/8~30 | API 23/8REG,API 27/8IF,API 31/2REG | 6.5~20 | 1/4~25/32 |
| 108 | 41/4 | 1000~9140 | 33/8~30 | API 23/8REG,API 27/8IF,API 31/2REG | 6.5~20 | 1/4~25/32 |
| 114 | 41/2 | 1000~10670 | 33/8~35 | API 27/8IF,API 31/2REG | 6.5~20 | 1/4~25/32 |
| 127 | 5 | 1000~10670 | 33/8~35 | API 31/2REG | 8~20 | 5/16~25/32 |
| 133 | 51/4 | 1000~10670 | 33/8~35 | API 31/2REG | 8~20 | 5/16~25/32 |
| 140 | 51/2 | 1000~10670 | 33/8~35 | API 31/2REG | 10~22 | 25/64~7/8 |
| 146 | 53/4 | 1000~10670 | 33/8~35 | API 31/2REG | 10~22 | 25/64~7/8 |
| 152 | 6 | 1000~10670 | 33/8~35 | API 41/2REG | 10~22 | 25/64~7/8 |
Q: Are you a manufacturer or trading company?
A: We are a specialized manufacturer.
Q: What are your main products, and used for?
A: Our products include core barrel, casing, drill rod, drill rig and other drilling parts.They are used for mineral exploration, geological drilling,
Q: How about the delivery terms?
A: 1.Payment: T/T, L/C, Western Union, Paypal, 30% deposit in advance and rest before delivery
2. Min. order quantity: 1 piece.
3. Transportation: By sea, train.
Q: How about discount?
A: Price is based on products and order quantity.
Q: Do you accept sample order?
A: Yes sure, please contact us for details.
Q: How about your after-sales service?
A: As a manufacturer has 20 years of history we offer prompt technology support for all problems and questions. Besides, we accept goods return or replace for quality problem.
Q: Where is your factory located in?
A: Our factory is located in Linqing city,Shandong province, China.
Q: How does your company control the quality?
A: Quality first. In order to guarantee high quality for our products, our always make a serious inspection for all products and raw materials in strict procedure.
We have obtained certificate of ISO9001*Yikuang is professional production of drilling tools, if you want to know more about our products, please feel free to contact us.
ซัพพลายเออร์ที่มีใบอนุญาตการทำธุรกิจ
ซัพพลายเออร์ที่ผ่านการตรวจสอบแล้ว 
