The surface quality of angle steel is specified in the standard. Generally, there must be no harmful defects in use, such as delamination, crusting, cracks, etc.
The allowable range of angle geometry deviation is also specified in the standard, generally including the degree of curvature, side width, edge thickness, apex angle, theoretical weight, etc., and specifies that the angle steel must not have significant torsion.
Oscillator,Crystal Oscillator,Electronic Oscillator,Voltage Controlled Oscillator
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