We supplies the cylinders along with thread valve which depends on the customer usage applications.
Gas cylinder valves. Gas cylinders are open-ended. To allow a gas to be contained within a cylinder a valve is usually fitted into the open end of the cylinder, normally at the top, or shoulder of the cylinder. It is a means of closing an opening in a cylinder. It provides an inlet port to allow a cylinder to be filled.
Within a certain price range free samples are available