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螺桿和螺柱 ? 牙條 Threaded rod DIN 975 ? 螺桿 Metric thread stud bolts DIN 976-1 ? 螺桿—過盈配合螺紋 Metric interference-fit thread stud bolts DIN 976-2 ? Welding studs for turnbuckles DIN 34828 ? High-strength structural bolting assemblies. For preloading DIN EN 14399-3 ? High-strength structural bolting assemblies. For preloading DIN EN 14399-4 ? Hexagon bolts with flange-Small series DI