Carbon simbi isina musono pombi ihollow cross section, isina misono yakatenderedza simbi refu. Simbi chubhu ine mhango muchinjiko-chikamu, yehuwandu hukuru hwepombi dzinotakura mvura, sekufambisa kweoiri, gasi rechisikigo, gasi remarasha, mvura uye imwe yakasimba zvinhu pombi. Simbi yakasimba semapombi esimbi...
Verenga zvimwe