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Xhumana nathi
ROOM 3,27/F.,HO KING COMMERCIAL CENTRE, NO.2-16 FA YUEN STREET, MONG KOK, KOWLOON HK
Yini i-anti drain back valve?
2019-11-19
Ivimbela uwoyela ekuphumeni esisefweni nasezigalari zikawoyela lapho injini ivaliwe futhi kusiza ukugeleza ngokushesha kukawoyela enjinini lapho iqala. Akuzona zonke izihlungi ezidinga i-anti drain back valve ngenxa yokwakhiwa kwenjini.
