55彩票幸运飞艇计划

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  • Granite Straight edge
  • Granite Straight edge
    Granite Straight edge

    Granite Straight edge

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    description

    Straight Rules Precision

    Material is choose black granite ,two narrow edge is lapping with accuracy

    Feature:

    Square gauge include feet ,angle plate and so on (Special tool to 90 degrees). Used to test the verticality of workpiece and equipment installing. Installation and scribing orientation of mechanical industry is an important measurement tools. It is characteristic of high accuracy, good stability, convenient in maintenance.

    Material ,sing "Jinan green" stone by hand-grinding machining made.

    Merit ,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 in specting the straightness and flatness


    Pecification (mm)Beeline tolerance of working surface (um)Squareness between working surfaceTolerance of h.w.between a matched pair
    Precision grade (um)
    000000000
    160x25x161.5320401.53
    250x40x2524306024
    400x63x4048408048
    630x100x6361250100612


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