GB2626-2006 High Quality 3 Ply Non Woven Mask Disposable Facemask Weifang Leying Trading Co., Ltd Base Info Material:Non-Woven+Meltblown Layer+Non-WovenCustomized Packing:AcceptShelf Life:2yearsFunction:Anti-DustTransport Package:50 Pieces Per Pack,Box, 40 Boxes Per CartonSpecification:17.5cm*9.5cm Description Pre:3 Ply Disposable Nonwoven Surgical Medical Face Mask Facemask Next:China Factory Wholesale Disposable 3ply Surgical Facemask with China Certificate