Emkhakheni wemishini yezimboni, ikakhulukazi embonini ye-valve ne-valve accessory, ukuqonda iqhaza lezinto ezifana ne-valve yebhola yebhola yenhlanzela kubalulekile. Lawa ma-valve aklanyelwe ngokukhethekile ukwenza lula ukuphathwa kahle koketshezi emathangini okuhlanzekile, okuvame ukusetshenziswa ekudleni, isiphuzo, izimboni zokukhiqiza imithi, namakhemikhali. Enye ye-pr