I.S. EN 27931:1993现行
Insulation Caps And Bushes For Resistance Welding Equipment
出版：National Standards Authority of Ireland
专家解读视频
Specifies dimensions and requirements for insulated caps and bushes in the secondary circuit for resistance welding equipment, especially for use in back-ups according to IS0 5827 'Spot welding - Electrode back-ups and clamps'.
SN EN 27931:1996 - Identical
ONORM EN 27931:1992 - Identical
BS EN 27931:1992 - Identical
ISO 7931:1985 - Identical
UNE EN 27931:1993 - Identical
NBN EN 27931:1992 - Identical
NF EN 27931:1992 - Identical
SS EN 27931 Ed. 1 (1992) - Identical
UNI EN 27931:1994 - Identical
EN 27931:1992 - Identical
