Factors that cause the problem in the working area. Several factors occur, including size, type, and number of machines, raw materials used in production. Characteristics of building structure of the floor/wall and resulting from the process, or the method of work of the employee voice as caused by factors such as a spinning machine side. Weaving machines and motors, or from a device that is a component of a machine, such as mu-lay the belt belt drops the Center indentation will cause a noise from the belt to the satire between Groove belt. Bolt seized the components of a device, or a loose structure. When the machine is working, the impact of the metal causing a loud and distinct bearing is defective, it will cause a noise when rotating bearings. Etc. sounds as resulting from a process or method of work of the employee, such as to throw into a container or metal work pieces at stores to tap/tap clock to work bending or component. Without measures to reduce the noise level caused by wind pressure tap or from pipes or wind/wind came blowing gun, the staff, etc.
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