3.18 更新：

调整了1.由六角螺母改成热熔螺母；2.缩短加固环高度，更贴合密封箱的壁厚；

3.18 Update:
Adjusted 1. Changing from hexagonal nuts to hot-melt nuts; 2. Shorten the height of the reinforcement ring to better fit the wall thickness of the sealing box;
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万向耗材干燥箱快接接头（适配2x4mm铁氟龙管）优化版

Optimized version of quick connect joint for universal consumables drying oven (compatible with 2x4mm PTFE tube)

开孔须知：耗材开孔需要大于圆球，方便自动转向

Opening Notice: The opening of the consumable box needs to be larger than a round ball for easy automatic turning

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