Mutsara 1: Kushandiswa kwakakosha kwe phosphoric acid (phosphoric acid) kugadzirwa kwebhasi lead phosphite, inova inogadzikana muPVC uye yakabatana ne chlorinated polymers. Mutsara wechipiri: Kushandiswa kwakakosha kwephosphorus acid (base lead acid) kugadzirwa kwephosphorus phosphite, inova inogadzikana muPVC nemamwe mapolymers ane chlorine. Mubvunzo: Mutsara wokutanga nomutsara wechipiri unoreva chinhu chimwe chete here? Hungu kana kuti Aiwa?
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