Mpweya wa mphira uli ndi magawo atatu: chubu, kulimbikitsa ndi chivundikiro。Chubucho chimapangidwa kuchokera ku mphira wapamwamba kwambiri wakuda komanso wosalala, makamaka NBR, womwe umalimbana ndi abrasion, dzimbiri ndi mafuta。Chilimbikitsocho chimapangidwa kuchokera kumagulu angapo amphamvu kwambiri, zomwe zimapangitsa kuti payipi ikhale yolimba。Chophimbacho chimapangidwa kuchokera ku mphira wapamwamba kwambiri wakuda ndi wosalala, wosagwirizana ndi moto, abrasion, dzimbiri, mafuta, nyengo, ozoni ndi ukalamba。Chotsatira chake chimakhala ndi moyo wautali wiki ..