Bincika Inganci da Daidaitaccen ma'aunin matsa lamba mmhg daga Guanshan Lokacin da yazo ga abin dogaro da ingantacciyar ma'aunin matsa lamba, mmhg matsa lamba ya fito waje a matsayin babban zaɓi don aikace-aikacen masana'antu daban-daban. A Hangzhou Guanshan Instrument Factory,...
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