3M 64316, Cubitron II Depressed Center Grinding Wheel, T27, 9 in x 1/4 in x 7/8 in, 7100094063, 20 per case 
Insize 5701-D40, SPECTROPHOTOMETER, 6974029775277
$2,923.01
Wavelength range 15.75~27.56uin
Wavelength interval 0.39uin
Conforms with CIE 15, ISO 7724-1, ASTM E1164 and DIN5033 Teil7 standards
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