Bearings, wanda aka sani da "haɗin gwiwar masana'antu", sune mahimman sassa na asali a cikin masana'antar kera kayan aiki, ƙananan zuwa agogo, manyan motoci, jiragen ruwa ba za a iya raba su ba.Daidaitonsa da aikinsa suna taka muhimmiyar rawa a cikin rayuwa da amincin mai gida.Birnin Linqing,...
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