Customized Rock Drilling Chisel Bits Manufacturers ...
C: Cross Tapered Bit Top Head Diameters: From 28mm to 42mm. D: Customer-made Rock Drilling Chisel Bits are also available by order. E: Taper Connection Degree: 6,7, 11,12 F: Hex Drill Rods Matched: Hex22, Hex25 G: Steels Material Chemical Name:42CrMo 45CrNiMoV(By Request) H: Processing: Forging.
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