1. E ka fihlela litlhoko tsa ts'ireletso tse fapaneng tsa thepa.Mekotla ea liphutheloana tsa lijo ha e khone ho fihlela litlhoko tsa litšitiso tsa mouoane oa metsi, khase, mafura, li-solvents le lintho tse ling, empa hape e fihlela litlhoko tsa bareki, joalo ka anti-rust, anti-corrosion, anti-electromagnetic ra...
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