The beijing american mine shipping technology development company ltd. (formerly beijing mine machinery co. Ltd.) specializes in r & d marketing and import and export of mining machinery support systems. The main efforts are the hydraulic lubrication control system for shredders, sand mills, vibration equipment, mobile stations, etc.; the development of applications for integrated hydraulic lubrication control systems for mine \\s/salary bone production lines; and the supply of spare parts for the spare parts for the metresan\tevik international brand shredder。