Product Description

Coal and rock drill pipe in the production process, materials used special techniques to deal with the way the drill pipe to increase the strength, hardness and wear resistance, extended life, increased economic efficiency. Detailed parameters Specifications :0.**6 m Department of the promotion of coal drill three small products, and Φ*7mm, Φ*8mm, Φ*0mm, Φ*2mm four specifications. Detailed parameters In three small products based on user requirements can be customized according to Φ*6mm, Φ3 8mm, Φ*0mm, Φ*2mm type bolt drill bit, to cater for the various Φ*6mm-Φ*0mm drill rods and bolts of the machine B *9, B*2 hollow hexagonal drill pipe the use of holes. Is divided into two categories, I type for soft rock drilling, Ⅱ-type applies to hard rock and hard rock drilling.