Standard or Nonstandard
Standard
Item Name
upper and lower kelly plug choke valve
Working Pressure
500/1000/1500
Spec of kelly stem
2-1/2;3;3-1/2;4-1/4
Min bore Dia
1-1/4;1-3/4;2-1/4/2-13/16
Usage
drilling tools, Oilfield well drilling
Working medium
Oil gas water