Cylinders Holding is the biggest producer of seamless steel tube cylinders and are producing cylinders since 1906. Their main product are seamless steel cylinders in all different sizes and pressures. Cylinders Holding are the only manufactures on the market who can produce cylinders with working pressure up to 1000 bar. They are located in Ostrava, it is in the east of Czech Republic. They offer different storage solutions for hydrogen and also offer cylinders for all kind of gases.