Cryostar, a French manufacturer of turbo-expanders, has signed a contract with SKF for the supply of SKF S2M magnetic bearings and the latest-generation E300V2 control cabinet. The bearings will be used in oil-free turbo-expanders that Cryostar will deliver to Shaanxi Yanchang Petroleum Yanan Energy and Chemical Co Ltd for use at an ethylene and propylene plant located in the China’s Shaanxi Province.