日本EISENFC型（大外径）针规 精度：20.00-30.00：±2.0μm 30.01-50.00:±3.0μm型号规格0.01间隔数量型号规格0.01间隔数量FC-20A20.0-20.5051FC-25B25.50-26.0051FC-20B20.50-21.0051~ FC-21A21.00-21.5051~ FC-21B21.50-22.0051~ FC-22A22.00-22.5051~ FC-22B22.50-23.0051FC-29A29.00-29.5051FC-23A23.00-23.5051FC-29B29.50-30.0051FC-23B23.50-24.0051FC-31A30.00-30.5051FC-24A24.00-24.5051FC-31B30.50-31.0051FC-24B24.50-25.0051FC-32A31.00-31.5051FC-25A25.00-25.5051FC-32B31.50-32.0051