DIN, ISO ndi AFNOR Miyezo - Ndi Chiyani? Zogulitsa zambiri za Hunan Great zimagwirizana ndi mtundu wapadera wopanga, koma zonsezi zikutanthauza chiyani? Ngakhale kuti sitingazindikire, timakumana ndi miyezo tsiku lililonse. Muyezo ndi chikalata chomwe chimayika zofunikira kwa wokwatirana naye ...
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