raw material: 55SiMnMo
production process : involving steel rolling, forging, normalizing, quenching and tempering, etc
Shank size: H22 108mm/H25 108mm
Taper degree: 7, 11
we offer four quality products including Grade A drill rod Qs and GTIII can be applied to solid rocks
Grade B drill rod QSAA and G30 is suitable for IV level or above and 12 rocks, Grade C and Grade D dril rod suitable for IV level or below and f 8 rocks.
Please ask detailed and specific
questions about Pricing, Minimum Order Quantity, Delivery Timelines etc. Detailed Messages
result in prompt responses.
