久久国内外免费视频_日本黄三级视频_一本大道在线观看无码一区_8050网午夜一级毛片

×

MB-6650B light tube resistant yellowing test machine

Video
Gallery
360°Show
×
×
×
Applicable scope
Test principles and standards
Instrument characteristics
Configuration list
The export of finished shoes is placed in containers. Due to the influence of solar radiation, shoes and materials are easy to interact with the chemical components they contain, resulting in the color change of shoes. This machine is to simulate the ultraviolet light in the solar light, to test the yellowing resistance of the shoe material, so as to provide reference for the control of chemicals added in the process.
ASTM-D1148、HG/3689