螺栓: DIN 931/ DIN 933, JIS B1180, ISO 4014/ ISO 4017, BS EN 14399-3, BS EN 14399-4 螺母: DIN 934, JIS B1181, ISO 4032/ ISO 4033, ASMEB18.2.2, BS EN 14399-3, BS EN 14399-4
M6~M80
普通,黑色,镀锌,热浸镀锌
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