花岗石方筒（大理石方筒）1）花岗石（大理石）方箱的检定标准：根据国家检定规格：JJG194-92制造。2）花岗石（大理石）方箱的规格型号：规格(mm)工作面平面度相对面平行度工作面间垂直度每对平行规H.W之差精度等级（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