Specification :
From the standard instrument (also called rbis machine) is used in metal tensile samples calibration laboratory equipment rbis. The market currently has 400, 300 type two kinds of standard from the device, type 400 standard instrument in the production process from though is the improvement of 300 type, but in the production of 300 type possession or technical advantage. Jinan Goldman sachs is professional standard instrument manufacturer from production, supply from stock price and technical advantage. I company produces the standard instrument according to gb is from GB228-87 metal materials tensile test requirements of design and manufacture, Goldman sachs brand standard instrument from rbis from standard accurate, high working efficiency, and be simple easy to master, is should be prepared laboratory supporting instrument. DX-300 reinforced standard instrument is from a root through the axis rotation with spiral with 360 ¡ã, and with the impact of the elastic order spring up. The handle a week in the sam