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TC1 螺纹 ISO 1502—96 一般用途ISO米制螺纹——极限量规与检验 TC5 金属管和金属配件 ISO 9974—1—96 通用和液压传动用接头——带弹性密封圈或具有“金属对金属”密封性及带ISO 261螺纹的螺纹孔和外螺纹
TC1 ISO 1502-96 ISO General Purpose Metric Threads - Limit Gauge and Inspection TC5 Metal Pipe and Fittings ISO 9974—1-96 Joints for General and Hydraulic Drives with Elastic Seals or with “Metal-to-Metal” Sealing And threaded holes and external threads with ISO 261 threads