美女脱了内裤打开腿让男人戳,亚洲国产区男人本色在线观看,中文字幕久精品免费视频,久久99热精品免费观看牛牛

×

YG815D-II flame-retardant tester of fabric (Horizontal method)

Video
Gallery
360°Show
×
×
×
Applicable scope
Test principles and standards
Instrument characteristics
Configuration list
For all kinds of textile materials, the combustion performance test of the time used to spread the flame in the horizontal direction to the specified distance.
FZ/T01028  ASTM D5132  JIS D1201 and so on.