R32 bench drilling
1)thread:R32
2)type:bits,drill rods and coupling
3)bit diameter:48-127mm
4)drill rod length:915-3660mm
R38 bench drilling
1)thread:T38
2)type:bits,drill rods and coupling
3)bit diameter:64-127mm
4)drill rod length:915-6095mm
T45 bench drilling
1)thread:T45
2)type:bits,drill rods and coupling
3)bit diameter:70-152mm
4)drill rod length:1220-6095mm
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