Ababoneleli beValve yeSango laseChina: Isikhokelo esiBanzi seyona nto ilungileyo
Intshayelelo: Iivalvu zesango zizinto ezibalulekileyo kwiinkqubo ezahlukeneyo zoshishino, ukulawula ukuhamba kwemithombo yeendaba ezifana nolwelo, iigesi, kunye ne-slurries. Ngezicelo ezininzi kumacandelo ahlukeneyo afana neoyile negesi, i-petrochemical, ukuveliswa kwamandla, kunye ...
jonga iinkcukacha