供应圆形平板,圆形平台,铸铁圆形平板,铸铁圆形平台,铸铁圆形平板平台圆平板规格mm精度等级 m00级0级1级2级3级ф300 8035.5112260ф500 1003.56.5132670ф800 15048163280ф1000 1805102040100ф1200 2005.5112244110ф1500 2006122346120ф1800 2206.5132652130ф2000 2507142856140ф2500 3008163264160ф3000 3509183672180ф3500 40010204080200ф4000 45011224488220