ISO 9001:2000,TS16949,OEM offered NINGBO CIGUANG SYNCHRONOUS BELT CO.,LTD manufacture the OEM auto timing belt at a popular price,S8M,ZA,ZB,RU,YU,MY,MR,RPP... Features & Benefits: • Curvilinear tooth profile for improved stress distribution• Reduced tooth jump due to deeper tooth design• High efficiency due to positive engagement between belt teeth and the pulley grooves• No re-tensioning ...