1,Sewing Machine Motor Belt in PU 2,MB300 MB350 MB360 MB380 MB410 3,ISO 9001:2000,OEM offered Sewing Machine Motor Belt in PUMB300 MB350 MB360 MB380 MB410ISO 9001:2000,OEM offered Synchronous belts are one of the most important part of power transmission drives, which exhibits important properties such as fixed speed ratio, no re-tensioning after installation, low maintenance with wide variety of ...