JOALOKA valve: Moetapele oa barekisi ba li-valve tsa China
Ka tsoelo-pele e potlakileng ea indasteri ea liindasteri, li-valve tsa bolo li sebelisoa haholo ho feta petroleum, lik'hemik'hale, khase ea tlhaho le liindasteri tse ling. Ka hona, ho bohlokoa haholo ho khetha mofani oa li-valve tsa bolo ea Machaena. Sengoliloeng sena se tla hlahisa LI ...
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