how to repaire slip rings

Sometimes, our slip ring is broken down, but how to repaire slip ring? 

Moflon will tell you all:

Reference Parts# of Slip Rings as below：
MP220 series Pancake Slip Ring
slip ring industry depends on economic situations
MT150248 series Through Bore Slip Ring
MUSB2381 series�CUSB Slip Rings
Slip Rings for Generator & Wind Turbine
Slip ring for packaging machine

Others：
Pri: Next Moflon slip ring makes the traditional harvesters to be automated
Others:
A Discussion on Separate Slip Rings
A Comparison of Rotating Electrical Connectors and Electrical Slip Ring
Importance of Slip Rings in Investment Intensive Production Plants
How Wireless Slip Rings Work Without Any Physical Connection?
A Discussion on Contact System and Slip Ring Transmitter
Importance of Through Bore Slip Ring Over Other Forms of Slip Ring