Morero oa khaolo ena ke ho tsebisa 'mali bohlokoa ba extrusion oa shoa boqapi hammoho le ho rarahana ho amanang le mosebetsi. Extrusion e bohlokoa haholo ts'ebetsong eohle ea polasetiki. Ntle le ho fana ka thepa e tala e joalo ka lakane ea thermoforming le lipelese tsa mochini oa ente le ts'ebetso e ngoe ea extrusion, lihlahisoa tse ngata tsa ho qetela li etsoa ka extrusion joalo ka filimi, tubing le mefuta e fapaneng ea lifaele. Le ha mefuta ea lihlahisoa tse ntšitsoeng kantle e ka fapana haholo ka sebopeho, ho na le melaoana e tloaelehileng e laolang moralo oa motheo oa lefu. Mohlala, ho bohlokoa ho fokotsa phallo ho tloha puleng ho ea fihla moo e tsoang, 'me joalo ka mokhoa o sebetsang, ho lekola phallo e lekanang le litekanyo tsa sehlahisoa, lisebelisoa tsa phetoho ea phallo li ka kenyelletsoa morerong oa lefu. Lihlahisoa tse 'maloa tse ikhethileng li entsoe ka extrusion mme lefu le hlokahala ho etsa hore lihlahisoa tsena li khetholloe e le: 1) lakane e shoa; 2) filimi e bataletseng le filimi e fehloang ea shoa; 3) pipe le tubing lia shoa; 4) extrusion ea profile ea shoa; le 5) co-extrusion ea shoa. Ho feta moo, mofuta o mong le o mong oa sehlahisoa o na le "Hardware" e ikhethileng e tlase nokeng ea die ho bōpa le ho pholisa ho qhibiliha ho fetisitsoeng. Ho thusa 'mali, lipapiso tse qaqileng tsa meralo e fapaneng ea lefu le lisebelisoa tse tlatselletsang tsa ho pholisa le ho theola noka lia bontšoa. Ho noha boemo bo hlokahalang ba lefu ho fihlela litekanyo tse lakatsehang tsa sehlahisoa ke mosebetsi o rarahaneng haholo mme o hloka tsebo e qaqileng ea litšobotsi tsa thepa le phallo le liketsahalo tsa phetisetso ea mocheso, le boiphihlelo bo pharalletseng ka ts'ebetso ea extrusion. Moralo oa lefu la extrusion e ntse e le bonono ho feta mahlale, leha e le hore e ntse e sebetsa le ho feta bakeng sa ntlafatso ea moralo ka lebaka la tsoelo-pele ea morao-rao khomphuteng e matla le mmotlolo oa lits'ebetso tse rarahaneng tsa phetiso ea mocheso le mocheso, pele, pele le kamora shoa.