Oxygen is our basic survival conditions, no oxygen, we cannot survive, we can see some patients in the hospital is needed medical oxygen tanks, because these patients only by providing oxygen, oxygen tank to breathe normally, so for the oxygen tank storage have strict requirements. So what are the a

325/5000 Why is it that oxygen cylinders, especially the bottles, can't infect and touch the oil? Because of grease, especially contain not plump fat and acid fat, very simple gasification exorcise. Oil gauze head, oil cloth because can help combustion is because in the atmosphere the attack oxidiz