TEL.
+0086-577-8619278718857755077
FAX.
+0086-577-86732601
EMAIL.
hengzi@hengziglasses.com
Generally, 8-40% of the light can penetrate sunglasses. Most people choose 15-25% sunglasses. Outdoor, most color changing glasses are in this range, but the transmittance of glasses from different manufacturers is different. Dark glasses can penetrate 12