Jinquan’s outstanding performance in Africa’s drilling, mining, construction, engineering work etc…
China leading Top-hammer rock drilling tools factory Ji […]
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GT60 Rock Drilling Consumables & Equipments matched wtih Tamrock and Sandvik drills Pantera 1100 and DP1500i and hammers HL1010
Our GT60 bench and production rock tools, including GT6 […]
Selection and Design of Threaded Drill Button Bits
In addition to the choice of tunsten carbide button gra […]
Rock Stone Classification and Stone Hardness
The hardness of stone is measured by Mohs hardness as a […]
Processing technology for threaded drill rods & shank adaptors
Steel Smelting and Rolling Drill steel smelting quality […]