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Gas welding equipment - Safety devices - Part 1: incorporating a flame (flashback) arrestor.
气焊设备。安全装置。第1部分：含有回火制止器的安全装置。
youdao
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Gas welding equipment - Safety devices - Part 1: incorporating a flame (flashback) arrestor.
气焊设备。安全装置。第1部分：含有回火制止器的安全装置。
youdao