... sleeve, stability on thermal property.Processed by CNC machine made our products high precision, inner wall of cylinder ... manufacturing and exporting of motorcycle parts and accessories from China to worldwide since year 2003, our line range ... BAJAJ (PULSAR, BOXER, etc.) ,TVS, HARLEY DAVISION, VESPA, SYM, China made scooter, LIFAN, HAOJUE, JINCHENG, QJIANG, YINXIANG, BAOTIAN, ZONGSHENG, DAYANG, ...