Changzhou Hoofar Industrial Co.,Ltd can supply EN12245 Fully Wrapped Carbon Fiber Reinforced Aluminium Lined Composite Cylinder ,Q/ZKB04-2017 Fully Wrapped Composite Cylinder with Aluminium Liner for Compressed Air ,GB28053 Ultra Light Composite Cylinder for Breathing Apparatus . Working pressure is 200 bar ,300 bar ,350 bar and 400 bar .Volume from 0.22 L-12 L.