4、bereservedfornormallyforbiddenexplosives1.3CRCXExplosives1.3C1.3GRGXExplosives1.3G1.4BRXBExplosives1.4B1.4CRXCExplosives1.4C1.4DRXDExplosives1.4D1.4ERXEExplosives1.4E1.4GRXGExplosives1.4G1.4SRXSExplosives1.4SClass2--Gasses(压缩、液化或加压溶解气体)2.1RFGFlammablegas2.2RNGNon-FlammableNon-toxicGas R