料盘连接柱 Filament Spool connecter

这是一个用于料盘连接的柱子，同时拥有外螺纹和内螺纹，底部的法兰适用于绝大多数不同尺寸的料盘。
This is a column for filament spool connection, with both external and internal threads, and the flange at the bottom is suitable for most filament spool of different sizes.