tyvek lid, MDK medical packing Co., ** The Authorized China Manufacture of Dupont Tyvek since 2004 tyvek lid,FEATURES:* fiber free,*Easy peel off,* Smoothly peeling off.* widly used for hard blister packing, sealed with hard blister box/tray, such as PVC, PETG etc.. *this pouch is made of tyvek + peelable plastic film, * to be suitable for EO gas, GAMMA RAYS sterilization, tyvek lid