花崗石方箱根據(jù)國家檢定規(guī)程:JJG194-92制造 規(guī)格(mm)工作面平面度相對面平行度(um)工作面間垂直度(um)每對平行規(guī)H.W等長之差(um)精度等級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 5000.0050.0100.00250.0050.0050.010600 600 6000.0060.0120.0030.0060.0060.012800 800 8000.0080.0160.0040.0080.0080.016