Jining City 金常青 Machinery Co., Ltd. is a excavator parts, road machinery, digging up tree machines, the company marking machine, mining machinery, engineering machinery parts and other professional production and processing, and has a complete and scientific quality management system. Jining City, Jin Changqing Machinery Co., integrity, strength and quality of products recognized by the industry. Welcome friends to visit, guidance and business negotiation. (more>>)