本实用新型是一种自润滑弹簧顶尖，属于机床附件。
The utility model relates to a self-lubrication spring centre, belonging to a machine tool accessory.
这是从一个饭盒，老式相机，歌剧玻璃零件，馅饼服务器，弹簧，鹅颈灯的一部分，布料杆顶尖，时钟键，锡杯。
It was fashioned from a lunch box, camera, opera glass parts, pie servers, springs, gooseneck lamp part, drapery rod finial, clock key, and tin cups.
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