... , Precision machining, Strict inspection. 2. non-standard, OEM. Timing Pulleys 1, A professional manufacturer and exporter; 2, Design bases ... on customers' need;Timing Pulleys1. Good quality raw material, Precision machining, Strict inspection. ... 2. non-standard, OEM. We supply timing pulley following series:H,XH,XXH;L,XL,MXL;T2 ...