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螺母国标新品GB812
板牙非标超大1.5
螺母国标GB812115
螺纹量规公制130
塞规螺纹m115x6m115x3
塞规螺纹m120x6m120x3
螺纹1301351.5
塞规螺纹1351.5
螺母GB81211565
塞规螺纹m115x2m115x3
塞规螺纹5x2x3x475x1x1
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