The larger ones are Jinan Second Machine Tool, Jinan Railway, Jinan Heavy Industry, Jinan Diesel Engine, Jinan Transformer, Jinan Boiler Factory, Jinan Electric Machinery Factory, Jinan Electric Power Equipment Factory, Sinopower Equipment Shandong Company Limited, Geely Automobile ～～～～ There are too many of them
Overall speaking, there are many more machinery manufacturing enterprises in Jinan. But as a general worker or technician treatment is average.
Mechanical majors are useful there, and I wish you good luck in finding a satisfying job.