Ukuvula ukusebenza: Indima yohlobo lwe-Screw iValves yomoya eyodwa kwiTheyibhile yezicelo zeShishini. IiValves zomoya eziManyeneyo 2. Ukuqonda umoya IiValves kunye nokubaluleka kwazo kuShishino 3. Inkqubo yokuSebenza: Ukusebenza njani i-Screw uhlobo lwe-Orifice Air Valves yomoya. Izicelo zohlobo lwe-Screw uhlobo olunye lweeValves zomoya ezahlukeneyo Amashishini