普通钢安装钢丝螺套用内螺纹通孔的机、手用丝锥
Through-hole machine and hand taps of internal screw on common stees for installing wire thread insert

2004-09-01

轻合金安装钢丝螺套用内螺纹不通孔的机、手用丝锥
Non through-hole machine and hand taps of internal screw on light alloy for installing wire thread insert

2004-09-01

轻合金安装钢丝螺套用内螺纹通孔的机、手用丝锥
Through-hole machine and hand taps of internal screw on light alloy for installing wire thread insert

2004-09-01