Interlocking Kelly Bar Number Outer Diameter(mm) Elements Max Drilling Depth(m) Retracted Length(m) 1 254 2 or 3 10 to 30 6.45 to 11.45 2 292 2 or 3 15 to 42 9.35 to 18.20 3 298 3 15 to 33 7.35 to 13.35 4 305 3 ... อ่านเพิ่มเติม
Interlocking Kelly Bar Number Outer Diameter(mm) Elements Max Drilling Depth(m) Retracted Length(m) 1 254 2 or 3 10 to 30 6.45 to 11.45 2 292 2 or 3 15 to 42 9.35 to 18.20 3 298 3 15 to 33 7.35 to 13.35 4 305 3 ... อ่านเพิ่มเติม
China First One Excavator Telescopic Arm KM260 Performance Quick and convenient city vertical stereo construction tooling is convenient of construction is small and stereo space; Easy Maintenance, low cost and ... อ่านเพิ่มเติม
Interlocking Kelly Bar Number Outer Diameter(mm) Elements Max Drilling Depth(m) Retracted Length(m) 1 254 2 or 3 10 to 30 6.45 to 11.45 2 292 2 or 3 15 to 42 9.35 to 18.20 3 298 3 15 to 33 7.35 to 13.35 4 305 3 ... อ่านเพิ่มเติม
Interlocking Kelly Bar Number Outer Diameter(mm) Elements Max Drilling Depth(m) Retracted Length(m) 1 254 2 or 3 10 to 30 6.45 to 11.45 2 292 2 or 3 15 to 42 9.35 to 18.20 3 298 3 15 to 33 7.35 to 13.35 4 305 3 ... อ่านเพิ่มเติม
Interlocking Kelly Bar Number Outer Diameter(mm) Elements Max Drilling Depth(m) Retracted Length(m) 1 254 2 or 3 10 to 30 6.45 to 11.45 2 292 2 or 3 15 to 42 9.35 to 18.20 3 298 3 15 to 33 7.35 to 13.35 4 305 3 ... อ่านเพิ่มเติม
Interlocking Kelly Bar Number Outer Diameter(mm) Elements Max Drilling Depth(m) Retracted Length(m) 1 254 2 or 3 10 to 30 6.45 to 11.45 2 292 2 or 3 15 to 42 9.35 to 18.20 3 298 3 15 to 33 7.35 to 13.35 4 305 3 ... อ่านเพิ่มเติม
Interlocking Kelly Bar Number Outer Diameter(mm) Elements Max Drilling Depth(m) Retracted Length(m) 1 254 2 or 3 10 to 30 6.45 to 11.45 2 292 2 or 3 15 to 42 9.35 to 18.20 3 298 3 15 to 33 7.35 to 13.35 4 305 3 ... อ่านเพิ่มเติม
Interlocking Kelly Bar Number Outer Diameter(mm) Elements Max Drilling Depth(m) Retracted Length(m) 1 254 2 or 3 10 to 30 6.45 to 11.45 2 292 2 or 3 15 to 42 9.35 to 18.20 3 298 3 15 to 33 7.35 to 13.35 4 305 3 ... อ่านเพิ่มเติม
Interlocking Kelly Bar Number Outer Diameter(mm) Elements Max Drilling Depth(m) Retracted Length(m) 1 254 2 or 3 10 to 30 6.45 to 11.45 2 292 2 or 3 15 to 42 9.35 to 18.20 3 298 3 15 to 33 7.35 to 13.35 4 305 3 ... อ่านเพิ่มเติม