山东志同轴承科技有限公司，专业生产：P5级、P4级薄壁轴承，不锈钢轴承，角接触轴承，四点角接触轴承，陶瓷轴承等。

Shandong Zhitong Bearing Technology Co., Ltd. specializing in the production of: levels P5 P4 thin wall bearings, stainless steel bearings, angular contact bearings, angular contact bearings at four o'clock, ceramic bearing, thousands of kinds of ceramic bearing, hybrid ceramic ball bearing, etc.