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WTB OP Dayan Zhanchi 3x3 55mm


Jan 17, 2018
I could be corrected wrong but I think they changed the plastic before the 55 mm was released.
After some research, maybe late 2012?
And plastic switch was on or b4 June 8 2013
Why did they change the plastic in the first place?
Does someone know a thread or something where I can read about it?
There’s no explained reason why, as OP is only ABS plastic but NP is ABS and PC. And ABS is technically cheaper that PC, so I have no idea why
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