4. Aluminiyamu aloyi Monga ife tonse tikudziwa, matenthedwe madutsidwe aloyi zotayidwa ndi mkulu ndithu. Kuphatikiza apo, ma aluminiyamu aloyi amakhalanso ndi mawonekedwe apamwamba. Chifukwa chake, ngati kuwotcherera kwa laser kumafunika pazitsulo za aluminiyamu, mphamvu zambiri zimafunikira. Mwachitsanzo, mndandanda wamba 1 mpaka 5 ukhoza kuwotcherera ndi la...
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