砂带磨床 abrasive belt grinding machine 校正活塞重量半自动机床 semi-automatic machine tool for correcting weight of piston 活塞环弹性自动检验机 automatic inspection machine for piston ring tension 液压仿形砂轮修整器 hydraulic copy wheel dresser 液压伺服对刀装置 hydraulic servo tool setting device 液压跟踪中心架 hydraulic traching center test 镗刀磨损自动补偿装置 automatic compensating device for boring cutter wear 磨圆锥齿轮孔和端面用的卡盘 chuck for grinding hole and end face of bevel gear 电接触式检验夹具 electical -contacted type detecting fixture 连杆称重[收起]