The pure fiber deep series paperboard e entsoeng ke Great Wall Filtration e entsoe ka lisebelisoa tse tala tse thehiloeng ho cellulose 'me ha e na lisebelisoa tsa liminerale. Matla a phahameng, a ka sebelisoa hape; Khanyetso e matla ea lik'hemik'hale, e loketseng libaka tse fapaneng tsa mokelikeli. Lihlahisoa tse hloekileng tsa fiber li sebelisoa haholo. Cocoa e sebelisoa bakeng sa tlhoekiso e mahoashe ea lino tse phahameng tsa viscosity, ho ts'ehetsa ts'ehetso ea pele ho li-filtration tsa li-filter aid, polishing, tlhakiso le tlhoekiso e ntle ea liindasteri tse fapaneng.
