Whether it's in the manufacturing or assembly process, or in http://www.pcbindex.com/practical applications, custom PCBs must have reliable performance. In addition to increasing costs, defects in the assembly process can be brought along with the PCB to the end product, which can lead to failures in practical applications and lead to claims for sale. Therefore, it is no exaggeration to say that the cost of a high-quality PCB is negligible in this respect.
In the market segment, especially the manufacturing product market applied in key areas, the impact of such failure is unthinkable. Therefore, the above points should be kept in mind when comparing PCB prices. Although reliable, the initial cost of a guaranteed and long-lived product is high, it is indeed worth it in the long run.
I just ran the chinese post trough translater, so people can quickly understand Pcbindex's posting.