ʻO ka PTFEpepa/palapala hana ʻia ma ka hoʻoheheʻe ʻana a me ka hoʻopaʻa ʻia ʻana i kahi blank cylindrical, i ʻoki ʻia i loko o apepa e ka mīkini hana a kalena ʻia.Wahi a nā ʻano hana lapaʻau like ʻole, hiki ke hoʻokaʻawale ʻia i ʻekolu ʻano: oriented membrane, semi-oriented membrane a me non-oriented membrane.I kēia manawa, ʻo nā huahana membrane PTFE me ka membrane porous,kānana micro membrane, kala kala a pela aku.