BS 4215-4:1987

Заменен

Resistance spot welding electrodes, electrode holders and ancillary equipment, Specification for taper plug gauges and taper ring gauges

Заменен на

BS 4215-4:1990

ICS

25.160.30 Welding. Including thermal cutting equipment / Сварочное оборудование. Включая оборудование для термической резки