Ivalvu yoKhupho loMoya, iValve yeTWS
-
Ivalvu yokukhupha umoya, ivalvu yeTWS
Funda ngokugqithisileyoIvalvu yokukhupha umoya edibeneyo enesantya esiphezulu idityaniswe neenxalenye ezimbini zevalvu yomoya yediaphragm enoxinzelelo oluphezulu kunye nevalvu yokungena kunye nevalvu yokukhupha umoya esezantsi, inemisebenzi yokukhupha umoya kunye neyokungenisa umoya.
