The International Occupational Safety & Healthcare Goods Expo (CIOSH) idakhazikitsidwa ku 1966 kuti ipereke zida zonse zachitetezo ndi chitetezo chaumoyo kwa ogwira ntchito m'magawo akuluakulu opanga, kuphatikiza zomangamanga, mankhwala, zitsulo, migodi ndi chithandizo chamankhwala.Pambuyo pa zina ...
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