With efficient re-usage of small and medium size cylinders focused on along with the slump in the cylinder market, and differentiation of the medical and beverage areas, capital investment on the part of cylinder inspection companies stands out even more.

It is estimated that the number of cylinders for general high pressure gas, such as oxygen and nitrogen, as well as argon, being re-inspected was up by 2.6% in 2011, reaching 800,000 cylinders, continuing to increase steadily. On a monetary scale, the re-inspection fee per cylinder is 3,000, so that a simple calculation shows a market valued at 2.4 billion.