1.high precision reliable stability resistant to deform and guaranteed accuracy under normal ambient temperature 2.no rust

Products made into reinforcement plate and the cabinet-style, face has a rectangular shape, the materials used have HT200, HT250, HT300, HT350. Face the use of scratch inquiry process, the working surface of Machinable V-type, T type, U type and round holes, long holes and so on. Plate is used to detect the workpiece or celecoxib apparatus Datum Line. Flat-panel installation should be raised to the level of the load being evenly distributed in the fulcrum, the ambient temperature (20 degrees Celsius) when used to avoid vibration.

Our granite measuring devices and granite mechanical components are made of high quality "Jinanqing"granite due to their high precision ,long duration,good stability and corrosion resistance ,they have been more and more used in product inspection of modern industries. and  such high-tech areas as mechanical caerospace and scientific researches.   Physical Properties of "JI Nan Black"Granite Rock:Specific Gravity :2970-3070kg/m3Compressive Strength :245-254N/mm2Elastic Modulus;1.27-1.47N/mm2Linear Expansion Coefficient:4.61*10-6/cWater Absorptivity :<0.13%Shore Hardness:above Hs70    Granite measuring tools have the following characteristics: 1.High precision reliable stability resistant to deform and guaranteed accuracy under normal ambient temperature.

2.No-rust and anticorrosion.

3.Wear resistance long service life.

4.Any working surface cutting or scratching does not bring about rough "edges" which might influence its measuring precision.

5.Nonmagnetization.

6.Gloosy surface without sluggishness when the workpieces or tools are moving on it.

granite precision inspection plate