scba breathing
apparatus 1.Air cylinder volume:5,6,6.8L 2.Have ... /ECcertification 3.service time:50-60min 5years experience SCBA breathing
apparatus Type: RHZK9/30
Air cylinder: 9L Air storage capacity ... : 730 x 300 x 450mm
Positive pressure air breathing
apparatus is a kind of automatic open-type air breathing deviceMainly ...