Ukuqonda indima ebalulekileyo yeeValves zeenyawo ezisemgangathweni ze-ISO kwizicelo zeShishini

Ukuqonda iNdima ebalulekileyo yeeValves zeenyawo ezisemgangathweni ze-ISO kwiTheyibhile yezicelo zeShishini yeZiqulatho kwiNyawo esemgangathweni ye-ISO. Ziziphini Iivalve Zeenyawo? Ukubaluleka kwemigangatho ye-ISO kwiiValves zeenyawo zokusebenzisa iiValves ze-ISO esemgangathweni kwizicwangciso zeShishini IiValves zeenyawo ezisemgangathweni kuyilo lwamashishini ahlukeneyo kunye nokwakhiwa kwe-ISO