花崗石方筒（大理石方筒）1）花崗石（大理石）方箱的檢定標準：根據國家檢定規格：JJG194-92制造。2）花崗石（大理石）方箱的規格型號：規格(mm)工作面平面度相對面平行度工作面間垂直度每對平行規H.W之差精度等級（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