The alluminum cylinders manufactured by us are made of high quality aluminum alloy 6061. The manufacturing procedure includes punching, drawing, heat treatment, CNC flow forming spinning, inner surface treatment etc. There are two catagories which are Alluminum Alloy Lined Carbon Fiber Wrapped Composite Cylinder and Seamless Alluminum Alloy Gas Cylinder...The main features of them are as follows. Alluminum Alloy Lined Carbon Fiber Wrapped Composite Cylinder. The wall thickness is uniform with little difference. The shape of shoulder and base are produced with high precision and consistency. Anodic oxidation treatment gives the inner suface better corrosion resistance performance. Cylinder winding layers are made of imported superior quality carbon fibers, epoxy and other materials and are manufactured through the procedures of CNC winding, high tenperature curing etc. Seamless Aluminum Alloy Gas Cylinder The Seamless Aluminum Alloy Gas Cylinder is used to be filled and refilled with various kinds of gas, such as rare gases, high purity gases, standard gases, special gases, with a wide range of application in the chemical industry, electronic industry, medical treatment, gas and coal mining fields, which is the ideal substitute for the steel cylinder. We also have the ability to study, design and produce the seamless aluminum alloy cylinders with special specifications and technical requirement.