Changsha Friend Industrial Co.,Ltd was registered in 2005. It is a
famous privately operated enterprise specialized in researching and
manufacturing rock drilling equipment and pneumatic tools. The company
has rich scientific research and production experience. It produces high
quality rock drilling products by using high quality raw material,
utilizing advanced craft technology and imposing strict quality
inspection.
We always aiming at providing high-performance drilling consumables and superior technical service for our customers to maximize the drilling productivity.
Wallets hardware mechanical and electrical network service not only a form of corporate image is protective items for specific types of work, such as professional dust loading is to allow staff to avoid dust pollution from the hazards of skin.
Pakistani customers visited our company and discussed with us to open an exhibition hall in tube lifter.
First: when starting the motor does not rotate when the micro pump. Reason: 1 auxiliary switch DC regulated power supply fault; 2 battery or battery without power is not enough; 3 line contact; 4 motor and carbon brush contact; Second: after the start of the pump motor work but not the water.
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