Phenolic resin inonziwo bakelite, inozivikanwawo sebakelite powder.Pakutanga chinhu chisina ruvara (chichena) kana chero-shava-ruvara chinoonekera, musika unowanzo wedzera mavara ekuisa mavara kuti aite seakatsvuka, yeyero, dema, girinhi, brown, bhuruu nemamwe mavara, uye ane granular uye upfu.Resistan...
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