Buku la China lokonza ma valve: Malangizo owonjezera moyo wautumiki
Valve yaku China ndi chida chomwe chimagwiritsidwa ntchito kwambiri powongolera madzimadzi, ndipo kukonza kwake ndikofunikira kuti nthawi yayitali yautumiki italitsidwe. Nkhaniyi ikupatsirani buku laku China lokonza ma valve a globe kuchokera kwa akatswiri, kuti likuthandizeni kudziwa luso lokulitsa moyo wautumiki wa valavu yaku China.