花崗石方箱產(chǎn)品別名：精密花崗石方箱、檢驗(yàn)花崗石方箱、劃線花崗石方箱花崗石方箱制造標(biāo)準(zhǔn)：根據(jù)國(guó)家檢定規(guī)格：JJG194-92制造?；◢徥较淇梢杂猛荆簩?duì)工件的檢驗(yàn)、測(cè)量、劃線、等?；◢徥较湟?guī)格(mm)工作面平面度相對(duì)面平行度工作面間垂直度每對(duì)平行規(guī)H.W之差花崗石方箱精度等級(jí)（mm）000000000100 100 1000.0010.0020.0010.0020.0010.002150 150 1500.00150.0030.0010.0020.00150.003200 200 2000.0020.0040.00150.0030.0020.004300 300 3000.0030.0060.00150.0030.0030.006400 400 4000.0040.0080.0020.0040.0040.008500 500 5000.0040.0080.0020.0040.0040.008