If the car tire is damaged, a pair of tires must be replaced (bad tires must be replaced at both
ends), unless the tire to be replaced is a new tire or very light tire wear, and both ends of the tire
must be the same. Most of the brakes of automobile brakes are abnormal and abnormal wear of
the brake disc. Use a dial indicator to measure the axial runout of the brake disc, which should be
less than 0.05 mm. Beyond this specification, the brake disc must be replaced. Remove the brake
disc and measure the amount of swing.
The traditional conductive material is electro-woven with conductive fibers into nano-scale fibers
and nano-electronic circuits. As we all know, the diameter of human hair is 50,000 nanometers,
and the research team led by Professor Mark Dilmid is developing a nano data polyaniline fiber
with a diameter of only 100 nanometers. This is the best fiber in the world, only hair. 1/500 of the
wire diameter. If nano conductive fibers are associated with nano electronic circuits, the
computer can be made very small.