Weifang Lanjinggang Mechanical Parts Manufacture was founded on 24th Oct,2017, which is located in Weicheng Development Zone ,Weifang City . It covers an area of 40000 square meters, with construction area of 24000 square meters .Currently we employs more than 300 people, of which is more than 22 professional and technical staff The company now has 14 piston production lines, with an annual output capacity of 6 million, more than 95% products are for main machine match and for export sales. With short R&D cycle of new products, advanced equipment , lean manufacturing, and efficient after-sales service, we are able to fully meet thecustomer demand. JYJG's engineering expertise and state-of-the-art facilities have led to our being known for innovation and award-winning products and earned a reputation for excellence in quality and service.