... seamless steel cylinder, CNG cylinder for vehicle, low pressure LPG welded cylinder, composite cylinder, accumulator shells, welded insulated cylinder ... the standards of BS, JIS, DIN, EN, KS, ISO, GB(China) or the off-standard from the consumer. ... 1(MPa)3.2(MPa)16.5+0.5 -0.344011.0LPG HJP314-35.5-2.2 GB17673HP29535.52.2( ... MPa)3.3(MPa)17.0+0.5 -0.352814.5LiquefiedPropane HJL244-40-2.2 GB17673HP295402 ...