Haum rau siv hauv IIA, IIB, IIC Explosion hazardous gas zone1 thiab zone2.Combustible plua plav IIIA, IIIB, IIIC zone 21 thiab zone 22Ex-Mark:Ex db IIC Gb, Ex tb IIIC Db.ATEX Cert. No.: SEV 20 ATEX 0471 UIECEx Cert. No.: IECEx SEV 20.0016U