ISO GENERAL PURPOSE METRIC SCREW THREADS – GENERAL PLAN (ISO 261:1998, IDT)
出版:马来西亚标准局(DSM)
专家解读视频
ISO GENERAL PURPOSE METRIC SCREW THREADS – GENERAL PLAN (ISO 261:1998, IDT)
出版:马来西亚标准局(DSM)
专家解读视频