... ammonia design pressure:2.16Mpa1 CLW5070GYQ LPG semi-trailer standard configuration: Safety valve, level gauge, pressure gauge, thermometer, emergency shut-off ... in low temperature condition dimension stability, and the highest level of shrinkage.3 CLW5070GYQ LPG semi-trailer strict quality ... testing: A and B class welds 100% X-ray detection, grade ...