Chain tsav belongs rau meshing tsav nrog nruab nrab hloov tau qhov chaw, uas muaj ib co yam ntxwv ntawm iav tsav thiab siv tsav.Piv nrog cov iav tsav, saw tsav muaj qis dua rau kev tsim khoom thiab kev teeb tsa raug, kev ntxhov siab zoo dua ntawm cov hniav sprocket, qee yam bufferin ...
Nyeem ntxiv