About Us
Diameter Standard Laboratory provides tracibility of internal and external diameter measurements. For internal diameters, the measuring ranges are (0.1-100)mm, while (0.1-300) mm is measuring range of external diameter. Additionally, we provide services for the reference value of thread plug and thread ring according to ISO and JIS standards.
Plane ring gauge calibration
Diameter of plain ring gauge, master ring gauge and setting ring gauge is used as a standard for many instruments such as hole gauge, tubular inside micrometer, air gauge and thread gauge.
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