Prints are printed with printing inks that contain a substance called polychlorinated biphenyl, which is highly toxic and generally not oxidatively decomposed. The source of pollution in books and periodicals The old book was also stained with germs, viruses and parasite eggs because it was read

Reducing costs is the most important reason why the market is rushing toward robots, but most small and medium-sized enterprises cannot invest a lot of money to buy expensive robots and automation equipment. According to a survey by Frost & Sullivan, it is precisely this type of company that n

As we all know, printing and packaging equipment in operation, due to various reasons, sometimes failures, the occurrence of faults and the correct judgment of the cause of the fault is conducive to the timely resolution and troubleshooting; the careful analysis of the fault mechanism is conducive