China mpira valavu defect kusanthula: kukonza ndizovuta kwambiri
Valavu ya mpira ndi zida zomwe zimagwiritsidwa ntchito poyang'anira madzimadzi, mawonekedwe ake osavuta, kusindikiza bwino ndi zabwino zina zimapangitsa kuti azigwiritsidwa ntchito kwambiri mumafuta amafuta, mankhwala, zitsulo, mphamvu zamagetsi ndi mafakitale ena pankhani yamadzimadzi. Komabe, poyerekeza ndi ubwino,China mpira valve ilinso ndi zovuta zina, imodzi mwazomwe zimakhala zovuta kukonza. Nkhaniyi ichokera kwa akatswiri, kuti muwunike zofooka za valavu ya mpira waku China.