Lefatšeng le rarahaneng la litsamaiso tsa taolo ea mokelikeli, ts'ebetso ea serurubele e itšetleha haholo ka khetho ea litulo tsa vala. Sengoliloeng sena se thetsoa ho khethollo lipakeng tsa lisebelisoa tse peli tse sebelisoang ho tsena
Kenyelletso ea li-sepache tsa serurubele, lisebelisoa tsa bohlokoa litsamaisong tsa taolo ea lijo, li tumme ka melaoana ea limela ea Frieid, e tumme ka moralo oa tsona o sebetsang, moralo - katleho - E sebetsa. Ts'ebetso e ikhethang ea liphula tsa serurubele e kenyelletsa li-disc pointe
Li-valves tsa serurubele li loketse lihandara tse ngata bakeng sa taolo ea phallo ea phallo e sebetsang hantle le bonolo. Motsoako o mahlonoko o khethang katleho ea li-valves ke setulo sa valjee. Sehloohong sena, re tla hlahloba setulo ho Valv ea serurubele
(Litlhaloso tse akaretsang) Li-valve tse tsoang kantle ho naha li bua ka lisebelisoa tse tsoang li-brand tse tsoang kantle ho naha, haholo-holo Europe ea Amerika le Majapane. Mefuta ea Sehlahisoa O
Nako e fetileng, re bile re tšebelisano e monate. Ka lebaka la ho sebetsa ka thata le ho thusa, ho khanna kholo ea rona 'marakeng oa machaba. Re hlomphuoa ho ba le k'hamphani ea hau e le molekane oa rona Asia.