1. For the newly purchased rock drill, due to the protection measures of packaging, there will be some anti-rust grease inside. Be sure to disassemble and remove it before use, and smear lubricant ...
As a heavy industry with high capital and technology intensive, mining machinery provides advanced and efficient technical equipment for mining, deep processing of raw materials and large-scale eng...
On the morning of August 23, the State Council Information Office held a press conference. Minister of Commerce Wang Wentao, Vice Minister and Deputy Representative of International Trade Negotiati...
The following points should be paid attention to during the construction of the deepwater good drilling rig:
1. Scrub the outer surface of the drilling rig, and pay attention to the cleaning and ex...
In the 2nd century BC, China has used manpower and used bamboo bow elastic force to make the cone drill bit impact the ground to drill. Later, it was used in rural China for a long time. It was not...
The air-leg rock drill relies on compressed air to drive the piston to reciprocate. During the stroke, the piston strikes the shank tail, and during the return stroke, the piston drives the drill t...