UV Hazard Card 紫外線危害顯示咭
如UV照射在此咭時, 左下角會出現顏色變化, 此咭有3級危險程度顯示, 分別白 > 青 > 紅 (meaning : 注意, 危險, 非常危險) Size of card : 55 x 85mm
Three degree of colour change when sunlight is lighting on the card for a while
Item No : JP 115-950 pack of 5 cards
UV Hazard Card 紫外線危害顯示咭
如UV照射在此咭時, 左下角會出現顏色變化, 此咭有3級危險程度顯示, 分別白 > 青 > 紅 (meaning : 注意, 危險, 非常危險)
Size of card : 55 x 85mm
Three degree of colour change when sunlight is lighting on the card for a while
Item No : JP 115-950 pack of 5 cards
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