Min. Order Reference FOB Price
1 Piece US$50.00-1,000.00 / Piece
Product Description
CQL50A ( QI50 COP54 ) High Air Pressure DTH Hammers Without Foot Advantages: 1.Out of the throuble of foot valve fracture and expansion and contraction. 2.Lower energy consumption and higher impact frequency.The drilling speed is 15%-30% higher than the one with foot valve. 3.Simple ...