| 1. | Gas welding equipment - safety devices - incorporating a flame flashback arrestor 气焊设备.安全性装置.使用火焰 |
| 2. | Gas welding equipment - safety devices - not incorporating a flame flashback arrestor 气焊设备.安全性装置.未使用火焰 |
| 3. | Gas welding equipment - safety devices - part 1 : incorporating a flame flashback arrestor 气焊设备.安全装置.第1部分:安装回火 |
| 4. | Gas welding equipment - safety devices - part 2 : not incorporating a flame flashback arrestor 气焊设备.安全装置.第2部分:不安装回火 |
| 5. | ; gas welding equipment - safety devices - part 1 : incorporating a flame flashback arrestor ; german version en 730 - 1 : 2002 气焊设备.安全装置.第1部分:装有火焰 |
| 6. | ; gas welding equipment - safety devices - part 2 : not incorporating a flame flashback arrestor ; german version en 730 - 2 : 2002 气焊设备.安全装置.第2部分:无火焰 |