... floating balloon.Dissolved acetylene ≥98GB6819-1996CylinderWelding, cutting, heating, organic raw materialsPropylene ≥99.5Q/DY-98KgWelding, cuttingPure Gases,High Purity Gases Product nameTechnical ... 9996GB/T8980-96CylinderElectronical industry, smelting, analysisHigh Purity CO2 ≥99.9995Q/DY03-98CylinderElectronical industry, medicalHigh Purity Acetylene ≥99.9Q/DY05-98CylinderWelding, chemicalRare ...