国产特黄A片AAAA毛片,久久久国产精品人人片,夜蒲4三级做爰视频,强伦少妇a片视频

●Two kinds of craft: 1, Bag type, 2, box type; ●Low initial resistance and good breathability; ●Large adsorption capacity, high wind volume; ●The main adsorption odor.

●W-box-type filtration; ●Low initial resistance and good breathability; ●Large volume of dust; ●Gale volume.

●Aluminum frame bag type can be disassembled and reused, not washable; ●Low initial resistance and good breathability; ●Large volume of dust and high filtration efficiency; ●Economical and practical.

< 1 >