DIN EN 751-2:1997-08 Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water - Part 2: Non-hardening jointing compounds; German version EN 751-2:1996
1997DIN EN 751-2:1997-08 Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water - Part 2: Non-hardening jointing compounds; German version EN 751-2:1996
1997DIN EN 751-2:1997 Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water - Part 2: Non-hardening jointing compounds; German version EN 751-2:1996