Employees of the hottest printing company frequent

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Japanese printing company employees frequently suffer from cholangiocarcinoma, and some are classified as work-related injuries

according to NHK station in Japan on May 22, in recent years, the problem of employees suffering from cholangiocarcinoma has occurred in printing companies across Japan. The Ministry of health, labor and welfare of Japan identified a "this is all the reason for the illness of an employee working in a printing company in Osaka as work-related injury. Then, 17 employees of the company...

2. Simulated wear experiment between materials

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