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    Granite sqaure rulers

    Four edges flat, square and parallel to each other with lightening holes

    All granite products available in custom sizes and thicknesses, with threaded inserts, without lightening holes

    Feature:

     It is characteristic of high accuracy,,lossy black ,structure of precision ,homogeneous structure ,high strength ,hardness ,good stablility, no rust, acid-proof alkali, good wearproof ,magnetization-resisting and high durability  .In general heavy load and high temperatures can maintain high precision.

    Application:

     For inspection of verticality and parallelism as well as absolute 90° measuring base 


    Pecification (mm)Verticality measuring face basisMeasuring surface flatness or straightnessBase surface plane or straightness
    Precision grade (um)
    000000000
    100*63241111
    160*100241211
    250*1602.551212
    400*2503.5712.512
    630*4004.591.5312.5
    800*500510241.23
    1000*6306122.551.53


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    Sales dept:

    Tel:+86 180 3272 6169

    E-mail: ada@willingmachine.com

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