www.欧美视频在线看,精品999久久久久久中文字幕,最新四虎精品成人免费视频,操大美女高清视频网站,国产成人亚洲精品91专区高清,日韩视频一级中文字幕不卡,亚洲欧美在线免费观看

Active carbon fiber Carbon fiber Active carbon filter material Active carbon Conductive carbon material Mask Indoor environmental protection Application of the product Environmental protection engineering

Mask Home -> Application Children’s Breathing Mask Date：2013/4/19　Number：2597 This product is fabricated with new active carbon filament material of high absorptive performance and hi-qualified outer material suitable for children, with features as good breathability, absorptivity to poisonous and harmful gases. It's a necessary product for the healthy growing-up of children. Nantong yongtong Environmental Protection Science and Technology Co. Ltd friendly remind you: Do Not Neglect Your Children’s Rights to Breathe Purified Air!