加长卡尺NWK用于测量大口径长钢管的内外径测量。
Measure the inner and outer diameter of big pipe.
齿形轮廓测量仪CKY用于螺纹牙型半角的测量。
Measure the half screw angle of outer screw.
偏梯形螺纹消失量规用来检验消失螺纹根部以保证外螺纹有足够的长度并且确为接近消失点螺纹。
Measuring the condition of Deviating trapezoid screw to make sure enough length of outer screw and knowing that the screw is the screw gauge.
