Guess what is applied to the boiler fins and what purpose it serves?
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This post was last edited by WANGJIABAO on 2017-4-7 at 11:07. Guess what is applied to the boiler fins and what its function is I want to make it clear that this refers only to the white one.
It’s like rust-proof paint; if that’s the case, then it prevents rusting.
I don’t know; the original poster should announce it!
I don’t know what the white thing is; it might be used for leak detection.
The white one is lime; guess what it’s used for.
This post was last edited by Lantian on 2017-4-7 at 16:49. Just say so – it’s used for checking for leaks in kerosene. ;P If kerosene seeps in, it indicates a leak, and a mark will appear on the white surface.