Axis of rotation that you don't understand
The rotary shaft is an important part that plays a key role in the whole. The rotary shaft and its accessories play an important role in the material of the whole set of products. It will directly affect the comprehensive quality of products and have a great impact on the normal use and service life of products. Can use bright clean agent wipe, can increase brightness, hinge, crane wheel, castor and other moving parts in a long time may be because of the dust adhesion and reduce performance, every half a year or so point one, two drops of oil can maintain its smooth.