1. Dangane da hanyoyin fitar da najasa, bandakuna sun kasu kashi hudu ne: Flush type, siphon flush type, siphon jet type, da siphon vortex type. (1) Wanke bayan gida: Flushing bandaki shine mafi al'ada kuma sanannen hanyar zubar da ruwa a tsakar gida zuwa ƙananan bayan gida a China. Ka'idarsa ita ce amfani da karfi o...
Kara karantawa