Mutsara 1: `` Post-metallocene '' inoreva kirasi yehomogeneous catalysts isiri metallocenes. Mutsara 2: Post-metallocene inoreva kirasi ye metallocene catalysts isiri yakafanana. Mubvunzo: Mutsara wokutanga nomutsara wechipiri unoreva chinhu chimwe chete here? Hungu kana kuti Aiwa?
Kwete