最近琢磨怎么把我那台老机器的幕帘轴清清，搜了几篇老外的帖子，发现他们都是先滴点这个东西然后再上润滑油。请问这个所谓的naphtha中文名叫什么？国内哪里能买到呢？还有润滑油有没有推荐的？

附上老外的原文：

I opened up the camera and dropped a couple of tiny (1mm or so) drops of naphtha over the bushings of the two curtain spindles (top and bottom) and of the main shaft (all of these are just below the shutter selector dial, top and bottom sides on the left of the viewfinder) and used a bulb blower to make excess naphtha evaporate away. After a few hours, I dropped similar sized tiny lubricating oil on the bushings. The next day, I repeated the oil treatment and worked the shutter dozens of times. Well, the capping and bounce are all gone.

石脑油

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