Yongjin - China Makina abwino opangira zovala zamkati m'makina oyenda mofulumira kwambiri. Chotchinga chopanda nsalu chotsika mtengo.

1. Chipika cha mtundu wa latch chimadziwika ndi kulondola kwake, kulimba kwake, kulimba kwake, kutsika kwake mosavuta, palibe phokoso pothamanga, komanso chitsimikizo chothamanga mofulumira kwambiri.

2. Kapangidwe ka chimango chachitsulo chotseguka ndi kapangidwe kapadera komwe gel yosalala imayendetsedwa ndi kusinthasintha kwapamwamba. Imatha kuyenda popanda phokoso lililonse komanso kupita patsogolo mwachangu. Ndipo imatha kuchepetsa malo okoka, yokhala ndi mphamvu yowonjezera, kuchepetsa mphamvu pakati pa chimango chachitsulo ndi zodulira zomwe zingatsimikizire kuti makinawo amayenda mofulumira kwambiri ndikusunga ntchito yayitali.

3. Makinawa apangidwa bwino kwambiri, ali ndi kugwirizana, kulimba, kusavuta kugwiritsa ntchito, kusintha kwaulere, kupereka zida zosinthira mwachangu, komanso kutsitsa ndi kukonza mosavuta.

4. Makinawa ali ndi makina oyendetsera mafuta odziyendetsa okha, njira yoyendetsera mafuta odziyendetsa okha komanso choyesera mavuto a mafuta, zomwe zimapangitsa kuti mafuta azikhala bwino pakati pa zodulira ndi mabuloko omangidwa ndi unyolo.

5. Injini yosinthira liwiro loyendetsa galimoto imatha kupanga liwiro losasinthasintha komanso kuyendetsedwa pamadzi otsika, zomwe zimathandiza kuchepetsa mphamvu ya ntchito.

6. Ndi zipangizo za "double crocket hook single needle" ndi "double crocket hook double needle", ingagwiritsidwe ntchito popanga zinthu za nsalu monga ma riboni a pachifuwa, ma riboni a paphewa, ma riboni a nsalu, ndi zina zotero.