Oxygen tanks/gas detection and always and at all times prior to release. The airline must not leak crack. Joints must not be loose/leak and do not use cables with Roy Burns.
Make the call and the oxygen / gas customers, and each time before release. Line breaks must not leak Joints must not loose / leaky and do not use cables with burns.
Check the wire and the oxygen tank / gas, always and every time before the out line must not leak burst. The joints must not loose / leakage and do not use a line with burns.