内六角螺钉是孔式螺钉的一种。
介绍了一个大型盲孔电极的整体式结构改成镶拼式结构实例。
Introduced a example that the whole structure into Mosaic structure for the computer monitor shell.
介绍了一个大型盲孔电极的整体式结构改成镶拼式结构实例。
Introduced a example that the whole structure into Mosaic structure for the computer monitor shell.
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