Crane Cams
Manufacturer of camshafts and valvetrain components. Includes product overview, company profile and list of retailers.
http://www.cranecams.com/

928 Developments
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http://www.928developments.com/

Kams Inc.
One of the nation's leading companies specializing in cams and cam followers. Areas of expertise include manufacturing, remanufacturing, and custom engineering of camshafts and followers. Natural gas engines are our specialty.
http://www.kamsinc.com/

M and M Precision Systems
Turnkey metrology systems for gears, rotors, camshafts, crankshafts, compressor scrolls and other rotating parts.
http://www.mmprecision.com/

Jinninge Enterprise Co., Ltd.
Manufacturer of motorbike cam shafts, automobile camshafts, shift fork, gasoline and diesel engine parts, shift gear drums and rocker arms. From Taiwan.
http://www.camshaft.com.tw/

China Yuhuan Xinlong Machinery Co., Ltd.
manufacturer and exporter of slack adjusters, s-camshafts, camshaft kits, brake lining, axle, truck brake parts, automotive and bus parts.
http://www.yhxl.com