... pressure seamless steel cylinder, CNG cylinder for vehicle, low pressure LPG welded cylinder, composite cylinder, accumulator shells, welded insulated cylinder, and gas storage ... container, aluminum liner fully wrapped with carbon fiber composite cylinder in 30 seriese of 680 sizes. These cylinders are ... with the standards of BS, JIS, DIN, EN, KS, ISO, GB(China) or the off-standard from the consumer. ...