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Chigawo cha rock chophatikizika
Dongosolo la rock composite limapangidwa ndi utomoni wa polima, zida zopangira ma inorganic, zowonjezera zamankhwala ndi zida zina zopangira kudzera mwapadera.Amagwiritsidwa ntchito makamaka ku utoto wonyezimira wa miyala ya granite mkati ndi kunja kwa makoma a nyumba zapamwamba kuti alowe m'malo mwa granite youma yopachikidwa pamakoma akunja a nyumba zapamwamba.
