Shandong Carfree Auto Fittings Co., Ltd, belongs to Shandong Huifeng Group, established in the year 2000, is specialized in the research and manufacture of the constant velocity joint Assemblies (the drive shaft), including the wheel side cv joint, the gear box side cv joint, and the connecting axle. We have the OEM experience for many automobile enterprise such as Hyundai, Nissan, KIA, Ikco, Geely Suzuki, etc. We also provide the OE products for you, and we have more than 2000 models. 80% of our products has been exported to Mideast, Europe, Russia etc, which are highly praised. The annual output for the cv joint assemblies is 3Million sets. We pursue perfect product quality. The equipment for the producing and testing line are all the first-class domestic and abroad. For production, such as the NHK Builder and German EX-CELL-O for splining and screwing, German EFD for the quenching, DKK from Japan for the tempering and the eddy current testing, EMAG from German for hard milling and ...[More]achining, Italy Meccanodora for the sphere grinding, Jinan Yiheng for the outer diameter check, B.A TECH from Korea for the grading, the Germany IPSEN for the carburizing and quenching and tempering, Italy NOVA and Meccanodora for the channel grinding of the inner race and cage, etc. For testing, the Beijing Precise metalloscope, Zeiss 3-D coordinate measuring machine, Japan Mitutoyo roundness and contour measuring machine etc. To ensure the quality, from forging of the raw material to the finished products, we have the advanced and complete testing procedure for the material, production line, and the finished product performance such as the static torsion test, functional experiment, torsional fatigue, pull experiment. endurance experiment, the dust cover ozon experiment etc.