valavu yachipata cha ductile iron yosakwera tsinde
Chaka chilichonse kuyambira 1988, ogwira ntchito ku PopSci akhala akudzaza m'chipinda chamsonkhano kuti akambirane zazatsopano zofunika kwambiri zapachaka. Pamene tikuyesa kufunikira kwa zida zowoneka bwino komanso ma roketi osweka mbiri, manja athu amapeza magawo kuchokera mulu wa pizza, kufikira zakudya zambiri. ...
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