Where is the license plate number Lu R from?

[Harriet]

Lu R is the license plate number of Heze City, Shandong Province. Lu is the abbreviation for Shandong. License plate numbers for other cities in Shandong Province are: Lu A for Jinan, Lu B for Qingdao, Lu C for Zibo, Lu D for Zaozhuang, Lu E for Dongying, Lu F for Yantai, Lu G for Weifang, Lu H for Jining, Lu J for Tai'an, Lu K for Weihai, Lu L for Rizhao, Lu M for Binzhou, Lu N for Dezhou, Lu P for Liaocheng, Lu Q for Linyi, Lu R for Heze, Lu S for Laiwu, Lu U for Qingdao supplement, and Lu Y for Yantai. License plates, also known as vehicle registration plates, are plates hung on the front and rear of vehicles, made of materials such as aluminum, sheet iron, plastic, or paper. Their main functions are to identify the region to which the vehicle belongs and to allow the vehicle's owner and registration information to be traced based on the license plate number.