we are one-stop gas cylinders supplier in china with aluminum alloy gas cylinder,water capacity from 0.7 to 50L, working pressure is 15/20Mpa, aluminum alloy gas cylinders are widely used in in industry，medical care and rescue, diving, beverage dispensing, fire extinguisher to store the high purity standard gas. the features of aluminum gas cylinders, such as 40% weight reduction than steel cylinders, no magnetism, and interior surface treatment assuring gas clean. which advanced its market competition, and the sign replaced steel gas cylinder is becoming more and more obvious.