Mutsara 1: Kushandiswa kwakakosha kwe phosphorus acid (base lead acid) kugadzirwa kwephosphorus phosphite, inova inogadzikana muPVC uye ma polymer ane chlorinated akafanana. Mutsara 2: Kushandiswa kwakakosha kwephosphorus acid (phosphonic acid) kugadzirwa kwebhasi lead phosphite, inova inogadzikana muPVC uye yakabatana ne chlorinated polymers. Mubvunzo: Mutsara wokutanga nomutsara wechipiri unoreva chinhu chimwe chete here? Hungu kana kuti Aiwa?
Kwete