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Protective function labelling on shoes

HRO	Heat protection	up to 300°C
ORO	Fuel resistance
P	Penetration safety	up to 1.000 Newton
C A	Electrical resistance: conductive shoes antistatic shoes	max. 100 Ohm 100 Ohm - 1.000 Ohm
HI	Thermal insulation
CI	Coldness insulation
WRU	Water penetration/absorption	water resistant upper
E	Energy absorbing capacity at heel area	min. 20 J