ซัพพลายเออร์ที่มีใบอนุญาตการทำธุรกิจ
ซัพพลายเออร์ที่ผ่านการตรวจสอบแล้ว 
Drilling screen tube through the special numerical control equipment in accordance with the API specification of oil casing tube uniform hole, drilling tube can be used alone or as the core tube of the screen tube
CNC equipment processing, controllable size. The process is simple and cost-effective.
| Spec. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| k8 | k9 | k9.5 | k10 | k12.7 | k16 | k18 | ||
| o.d mm(in) |
8 (.315) |
9 (.354) |
9.5 (.374) |
10 (.393) |
12.7 (.500) |
16 (.630) |
18 (.708) |
other |
|
Grade |
Proof strength,non-proportional extension RP0.2 MPA | Rm,Mpa |
Elongation% A,% |
Impact toughness a,b Akv , J |
Hardness. HRC |
|
| Transverse | Longitudinal | |||||
| Q110 | 758-965 | ≥862 | ≥17 | 42 | 84 | 26-33 |
| Q130 | 896-1103 | ≥930 | ≥14 | 42 | 84 | >30 |
| Q140 | 965-1172 | ≥1000 | ≥11 | 42 | 84 | >33 |
| Q145 | 1000-1207 | ≥1069 | ≥10 | 42 | 84 | >33 |
| Q155 | 1068-1275 | ≥1137 | ≥10 | 42 | 84 | >33 |
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 3-10 days if the goods are in stock. or it is 7-30 days if the goods are not in stock, it is according to the real specification and quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=10,000.00 USD, 100% in advance. Payment>=10,000.00USD, 30% T/T in advance ,balance after inspection and before shipment.
B. L/C is also acceptable
ซัพพลายเออร์ที่มีใบอนุญาตการทำธุรกิจ
ซัพพลายเออร์ที่ผ่านการตรวจสอบแล้ว 
