RIX Adds Chinese Representative. Working closely together, RIX and Greatall Dynamic Equipment Company have teamed up to provide oil-free compressors to China. Greatall, with offices in Beijing, Shanghai, and Wuhan, will offer the full range of RIX compressors for petrochemical applications, filling oxygen cylinders, and many other requirements. Greatall will also provide spare parts and equipment servicing for RIX installations.RIX is pleased to welcome Greatall to the RIX team.