松雨霞 发表于 2018-10-15 11:11:14

DIN EN ISO 5175 - 2018

Gas welding equipment –
Safety devices –
Part 1: Devices incorporating a flame (flashback) arrestor (ISO 5175-1:2017);
German version EN ISO 5175-1:2017

Gas welding equipment –
Safety devices –
Part 2: Not incorporating a flame (flashback) arrestor (ISO 5175-2:2017);
German version EN ISO 5175-2:2017

admin 发表于 2018-10-16 10:35:44

谢谢您的分享，金币已奖励!
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