HB8360-2015 GH4169 螺纹公差带6h 光杆公差带h12螺纹带开口销孔长螺纹小六角头螺栓.pdf

HB8360－2015GH4169螺纹公差带6h光杆公差带h12螺纹带开口销孔长螺纹小六角头螺栓Bolt，reducedhexagon-head，shanktoleranceh12，threadtol...