I.S. EN 12420:2014現行
Copper and Copper Alloys - Forgings
出版：National Standards Authority of Ireland
專家解讀視頻
Describes the composition, the property requirements and tolerances on dimensions and form for copper and copper alloy die and hand forgings.
SS EN 12420 Ed. 2 (2014) - Identical
BS EN 12420:2014 - Identical
UNE EN 12420:2015 - Identical
SN EN 12420:2014 - Identical
NBN EN 12420:1999 - Identical
NEN EN 12420:2014 - Identical
UNE EN 12420:2000 - Identical
NBN EN 12420:2014 - Identical
ONORM EN 12420:2014 - Identical
NS EN 12420:2014 - Identical
NF EN 12420:2014 - Identical
