Not succeeded yet..
I've tried the first way (1) steamed the blade upon a pot of water (of course, it was an unused pot) for more than an hour -- hot, cold, then hot, and cold etc. Not moved at all. And (2) I took a big risk by heating the blade upon a small flame of kitchen gas -- hot, cold, and hot, cold. Not succeeded too... Very "stubborn"... (image below)
Then, I let it as it is again. And thinking of trying to clean the blade without submerging the hilt, of course... Still thinking how to do it.
GANJAWULUNG
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