Chitsulo cha perforated ndi chidutswa chachitsulo chomwe chadindidwa, chopangidwa, kapena kukhomedwa kuti chipange mabowo, mipata, ndi maonekedwe osiyanasiyana okongola. Zitsulo zosiyanasiyana zimagwiritsidwa ntchito popanga zitsulo, zomwe zimaphatikizapo chitsulo, aluminiyamu, chitsulo chosapanga dzimbiri, mkuwa, ndi titaniyamu. Inu...
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