The steel base protects the cylinder base from damage, it should not be removed. The base holes in these aluminum cylinders are designed for securing the steel base plate. They will not withstand the capacity of the cylinder. Do not use the base holes in these aluminum cylinders to attach any device to the cylinder.
WARNING: This product can expose you to chemicals which are known to the state of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov