specialist in uniform with hose in factory

bio business busy check chemical chemicals clean cleaner cleaning control cover coverall coveralls culture cycle dairy danger drug factory fermentation flap flexible flush food foodstuff gloves goggles hazardous hose hosepipe industrial industry interior laboratory lid man mask modern overall overalls panel plant pour process processing product professional protection rinse risk risky rubber science scientist specialist stainless steel suit supervision system tank technology toxic tun uniform valve vat water worker working