Uhlalutyo lwesiphene lweIvalve yeglowubhu yaseTshayina: Ulwakhiwo lunzima ngakumbi kwaye ukugcinwa kungenakulungeleka
Ivalve yeglowubhu yaseTshayina sisixhobo sokulawula ulwelo esisetyenziswa ngokuqhelekileyo, isakhiwo saso sinzima ngakumbi, ukugcinwa kokuphazamiseka yenye yeentsilelo zayo. Eli nqaku liza kuhlalutya iintsilelo zeIvalve yeglowubhu yaseTshayinangokwembono yobungcali.