Ống phát hiện khí Gastec (Detector Tubes)
Formaldehyde, HCHO, Methanal, Methyl aldehyde, Methylene glycol, Methylene oxide, Formalin (aqueous solution), Formol, Carbonyl hydride
Formaldehyde, HCHO, Methanal, Methyl aldehyde, Methylene glycol, Methylene oxide, Formalin (aqueous solution), Formol, Carbonyl hydride