Purchase Qty. Reference FOB Price
1 Piece US$17,307.00
2 Pieces US$17,290.00
3+ Pieces US$17,260.00
Product Description
ZGYX-420D seperate DTH Drilling Rig General Specification Hole Depth 30 m Hole Range Φ 110-138 mm Drill Pipe Sizes Φ 76x3000 mm Rotation Torque(Max.) 3200 N.m Hammer 4'' / 5'' Rotation Speed 0- 100 rpm Feed Force 20 kN Pull Up Force 45 kN Feed Type Chain / cylinder ...