What does a coal cleaner do?

The appearance of the company's steel members is treated and cleaned by a grinder. Zhengzhou Coal Mining Machinery Group Co., Ltd. (hereinafter referred to as "Zhengzhou Coal Machine") is located in Zhengzhou, an important transportation hub city in China and the eighth civilized ancient capital. It is a large-scale backbone enterprise specializing in the production of hydraulic supports in China. Upon inquiry, it was learned that the job of the cleaner of Mei Zheng Coal Machine is to treat and clean the steel members of the company by grinding machine. This job is sought after by everyone because of its simplicity and low salary.