适用行业
施工工地, 能源矿产, well drilling
应用行业
minnig/oil drilling/Coal Mining/water well
Use:
Water well drilling , mining etc.
Advantage:
Good wear-resistance & impact resistance
API thread
2 3/8'',2 7/8'',3 1/2'',4 1/2'',6 5/8'' etc.
Size:
6 '' , 6 1/2 '', 8 " etc. or customized
Color:
Golden or as required
Application:
Coal mine/ water well/ oil field drilling