Min. Order Reference FOB Price
1 Piece US$50.00-2,000.00 / Piece
Product Description
CW7-X High air pressure DTH Hammer without foot valve 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 structure, ...