法兰面螺栓和马车螺栓 DIN6921/DIN603
圆头方颈马车螺栓(短颈/大头/小头/加强型)DIN603,GB12,GB14,GB801,ISO8677,ISO8678,GB794,ASME/ANSI B18.5-2,ASME/ANSI B18.5-3,ASME/ANSI B18.5-6
圆头方颈马车螺栓(短颈/大头/小头/加强型)DIN603,GB12,GB14,GB801,ISO8677,ISO8678,GB794,ASME/ANSI B18.5-2,ASME/ANSI B18.5-3,ASME/ANSI B18.5-6

圆头方颈马车螺栓(短颈/大头/小头/加强型)DIN603,GB12,GB14,GB801,ISO8677,ISO8678,GB794,ASME/ANSI B18.5-2,ASME/ANSI B18.5-3,ASME/ANSI B18.5-6

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