|
Workers w bus bar cutting shearing machine ith? long-term exposure to copper dust can get Contact allergic rhinit cutter machine is? and nose, eye irritation, causing sore throat, cough, nasal congestion, rhinitis, and even leading to nasal septum perforation. copper busbar punching machine Long-term inhalation can still cause lung fibrosis. Copper also has some damage and bad i ホーム
|
|