4 1/2TBG不加厚油管螺纹量规,UPTBG4 1/2外加厚油管螺纹量规
面议4 1/2TBG不加厚油管螺纹量规,UPTBG4 1/2外加厚油管螺纹量规
面议1.900TBG不加厚油管螺纹量规,UPTBG1.900外加厚油管螺纹量规
面议1.315TBG不加厚油管螺纹量规,UPTBG1.315外加厚油管螺纹量规
面议1.050TBG不加厚油管螺纹量规,UPTBG1.050外加厚油管螺纹量规
面议4TBG不加厚油管螺纹量规,UPTBG4外加厚油管螺纹量规
面议3 1/2TBG不加厚油管螺纹量规,UPTBG3 1/2外加厚油管螺纹量规
面议2 7/8TBG不加厚油管螺纹量规,UPTBG2 7/8外加厚油管螺纹量规
面议2 3/8TBG不加厚油管螺纹量规,UPTBG2 3/8外加厚油管螺纹量规
面议1.660TBG不加厚油管螺纹量规,UPTBG1.660外加厚油管螺纹量规
面议