濟(jì)南東星精密花崗巖平板CVA234系列花崗石平板精度參照各先進(jìn)國(guó)家標(biāo)準(zhǔn),平面度公差依:JB/T7975-1999標(biāo)準(zhǔn)000級(jí)=1 (1+d/1000) m00級(jí)=2 (1+/1000) m0級(jí)=4 (1+d/1000) m1級(jí)=8 (1+d/1000) m(d為對(duì)角線mm)(測(cè)量溫度一般在20 2 C)花崗石平板精度表定貨序號(hào)規(guī)格(mm)重量(kg)對(duì)角線(mm)精度000( m)精度00( m)精度0( m)精度1( m)CVA234001300 200 5093601.535.511CVA234002300 300 70194241.535.511CVA234003400 250 70214721.53612CVA234004400 400 1004856823.56.513CVA234005630 400 1007674623.5714CVA234006630 630 13015589124816CVA234007800 500 13015694324816CVA2340081000 630 15028411822.54.5918CVA2340091000 750 15033812502.54.5918CVA2340101000 1000 15045014142.551020CVA2340111200 800 15043214422.551020CVA2340121600 1000 2009601887361224CVA2340132000 1000 250150021363.56.51326CVA2340142000 1600 300288025613.571428CVA2340152500 1600 30036002968481632CVA2340163000 2000 400900036054.591836CVA2340174000 2500 500153504717611.52346