The common thread gauges including ring gauges and plug gauges are used to calibrate thread workpieces with GB and ISO standards.
The common thread gauges including ring gauges and plug gauges are used to calibrate thread workpieces with GB and ISO standards.
普通螺纹量规（螺纹环规、螺纹塞规）适用于检测符合国家标准及国际标准的螺纹制件。