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Aug 26, 2020 Respiratory problems and lung function were studied in 403 quarry workers aged 10-60 years. Respiratory of Stone Crushing Industrial Site at Umuoghara, Ebonyi State, Nigeria. (40.2%) and secondary (49.1%) educa-.
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An investigation into respiratory health problems of workers at stone
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Objective: To determine the prevalence of respiratory problems and lung function impairment among quarry workers in Ebonyi State, Nigeria. Methods: Respiratory
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Full article: Performance optimization of jaw-type rock crushing
Dec 11, 2019 The recurrent failure of jaw-type crushing machine was traced to an inappropriate Rocks are abundantly available in most states of Nigeria and they are a source of diameter) for secondary crushers and mills a jaw-type rock crushing machine is Design and fabriion method design of eccentric shaft.
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