Automobile instrument enterprise

There is a good instrument factory in Nanjing, Ningbo Yinzhou Sheriman Electronic Instrument Co., Ltd., as well as Xiaoshan Chi Yuan and Yuyao Gaosen. I repair cars, and we sometimes get watches from these manufacturers. I also want to learn something about appearance. Can the landlord provide me with some relevant books or materials? Our repair shop usually changes the assembly directly when it sees that the instrument is broken. I want to learn this knowledge as long as it is an all-electronic LCD instrument. My QQ 1035479 14