Iye PTFEsheet/ndiro inoumbwa nekuumba uye sintering cylindrical blank, iyo inochekwa kuita asheet nemuchina wobva waiswa calender.Zvinoenderana neakasiyana nzira dzekurapa, inogona kukamurwa kuita marudzi matatu: yakatarisana membrane, semi-yakatarisana membrane uye isina-yakatarisana membrane.Parizvino, PTFE membrane zvigadzirwa zvinosanganisira porous membrane,micro filtration membrane, ruvara membrane uye zvichingodaro.