日本JPG,日本SHS,JPG螺纹规,JPG螺纹塞规,JPG螺纹环规,JPG环规,JPG牙规,SHS螺纹塞规,SHS螺纹环规,SHS牙规,SHS环规,日标螺纹塞规,日标螺纹环规,日标牙规,
日标环规,螺纹通止规,螺纹极限规,GPNP螺纹塞规,GPIP螺纹塞规,GPWP螺纹塞规,GRNR螺纹环规,GRIR螺纹环规,GRWR螺纹环规,GPNP 6H,GPIP Ⅱ,GPWP Ⅱ,
GRNR 6g,GRIR Ⅱ,GRWR Ⅱ,JIS螺纹塞规,JIS螺纹环规,JIS牙规,日本牙规,日本环规,螺纹位置规,螺纹垂直度规,螺纹同心度规,螺纹孔距规,