4.1a KP4x1m
Kelly pipes 4 pieces x 1m length
Friction ex Soilmec RT3-ST (nz)
-outermost pipe OD 355mm x ID 335mm
-2nd outer pipe OD 295mm x ID 275mm
-3rd inner pipe OD 245mm x ID 225mm
-innermost pipe OD 175mm x ID 115mm
Photos\4.1a to 4.1b