A 4 plastic clipboard manufacturers

Zippered briefcase

Ring Binder

包装盒

File bag, archive box, folder, secretary folder, information book, collection book, insert core rod clip, L-shaped folder

Removable magnetic document holder

Zhengshanggao A4 thickened PP foam writing board with writing pad, folder board and office supplies

Zhengshang PP foam strength folder, folder, test paper folder, file folder, finishing folder, long pressing clip, office supplies