中文字幕无码免费久久99_亚洲一码二码三码精华液_老熟女乱子伦_日日摸日日碰夜夜爽无码

The washed white duck down production samples were testing by International Down and Feather Testing Laboratory according to the Europe  standards.IDFL grades material quality by testing down and feather composition, content analysis, and species type as well as numerous other quality factors. Material is also graded for cleanliness by examining the fat and oil percentages, pH levels, odor, turbidity, and other purity factors. All down and feather material is double tested.