Drill rod TBSU L3000 x Z-50

I offer drill rods with welded-on ZP-50 locks, made by friction welding using butt-weld technology, all rods are tested with a special stationary machine, so I can confidently say that you can drill safely and don't have to worry about anything. I provide a 6 month warranty. Now, briefly about the component of the bar itself:
1) TBSU (universal steel drill pipe)
2) Steel 45 (pipe body metal)
3) Outer diameter 63.5mm (by lock)
4) Wall thickness 5mm
5) Coupling connection (ZP-50 Lock)
6) Conical thread
7) Steel 40ХН (metal of the lock body)
8) The transition (TBSU + ZP-50) is smooth, not a step.
9) Color black (painting)
10) Protective caps (for transporting this product)
Thermal treatment with HFC (surface hardening) of the ZP-50 tool joint.
We can also perform any length from 700mm to 6200mm, in a short time. The price is given for TBSU L3000 x Z-50. If you are interested in a different length and price tag, call the specified phone number.