产品信息花岗石平板精度参照各先进国家标准，平面度公差依JB/T7975-1999岩石平板标准000级1x(1+d/1000) m00级2x(1+d/1000) m0级4x(1+d/1000) m1级8x(1+d/1000) m(d为平板对角线长度。mm)规格精度等级000级平面度（ m）00级平面度（ m）0级平面度（ m）1级平面度（ m）300x200x50300x300x70400x250x70400x400x70630x400x100630x630x100800x500x1301000x630x1501000x750x1501000x1000x2001600x1000x2002000x1000x2001.51.51.522222.52.52.533.53333.53.5444.54.5566.55.55.566.578899101213111112131416161818202426