NBN E 29 404:1983现行
Automatic Steam Traps - Classification
出版：Belgian Standards
专家解读视频
1983 [14/10/1983]
ISO 6552:1980 - Identical
ISO 6553:1980 - Identical
ISO 6554:1980 - Identical
ISO 6704:1982 - Identical
ISO 6553 : 2016 - Identical
ISO 6554 : 1980(R2014) - Identical
ISO 6552 : 1980(R2014) - Identical
ISO 6704 : 1982(R2014) - Identical
EN 26704 : 1991 - Identical
ISO 6552 : 1980(R2014) - Identical
ISO 6554 : 1980(R2014) - Identical
