Pangani makina odulira nsalu apamwamba kwambiri. Perekani ntchito yoluka nsalu padziko lonse lapansi. - Yongjin Machinery
Makina oluka amatchedwanso makina opota, opota, makina opota thonje, ndi zina zotero. Makina opota oyamba onse anali opota pogwiritsa ntchito anthu ogwira ntchito. Ukadaulo wa makina opota wakhala ukuphunziridwa kuyambira m'zaka za m'ma 1800 ndipo pang'onopang'ono wakhala ukulowetsedwa pamsika wapadziko lonse kuyambira m'ma 1950. Yongjin imapanga mitundu yatsopano yapamwamba kwambiri ya makina opota ndipo imayikidwa pamsika umodzi pambuyo pa wina. Makina opota opanda shuttleless apeza zotsatira zabwino kwambiri pakukonza nsalu ndikuwonjezera magwiridwe antchito a makina opota, ndipo amagwiritsidwa ntchito kwambiri m'maiko padziko lonse lapansi, ndikufulumizitsa kusintha kwa zida zopota.
Yongjin ndi kampani yopanga ndi kugulitsa zida zamakina oluka, yomwe imagulitsa makina oluka, odzipereka kupanga nsalu zapamwamba kwambiri, talandirani kugula.