CBZ型齿轮泵是由天津工程机械研究所设计,山东济南液压泵厂和山东青州液压件厂生产的一种200—315ban压力级的高压齿轮泵。它不仅把原来齿轮泵的压力级提高了一级,而且在结构上进行了重大突破,达 CBZ gear pump is designed by Tianjin Institute of Engineering Machinery, Shandong Jinan hydraulic pump factory and Shandong Qingzhou Hydraulic Factory production of a 200-315ban pressure-level high-pressure gear pump. It not only increased the pressure level of the original gear pump level, but also made a major breakthrough in the structure, up to