DIN EN ISO 17292
Metal ball valves for petroleum, petrochemical and allied industries (ISO 17292:2015)
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发布日期 :
2001-05-01
实施日期 :
DIN EN 175
Personal protection - Equipment for eye and face protection during welding and allied processes
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发布日期 :
2001-08-01
实施日期 :
DIN EN 14717
Welding and allied processes - Environmental check list; German and English version prEN 14717:2021
现行
发布日期 :
2001-04-01
实施日期 :