thread ring gage螺纹环规;可调式螺纹环规
thread snap gage螺纹卡规
chaser thread snap gage板式螺纹卡规
standard thread ring gage标准螺纹环规
screw thread tool gage螺纹梳刀样板
thread plug gage螺纹塞规
screw thread pitch gage螺钉螺距规
thread pitch gage螺距规
screw thread angle gage螺纹角规