Stripper Clips - added pics

[Greatguns]

I bought a lot of SKS parts and accessories, which arrived today, among the stuff was some stripper clips. They were various numbers with some a single letter but most had the symbol 3Tk or <3Tk> on them. I am having a hard time remembering if I have seen that before on stripper clips. I am was assuming they are all Chinese because the same symbol also has U, P, I, C, , 23, 13, 58 stamped on them as well.

EDIT: Corrected some of my info I put hear when I went back to get the pics and looked at them closer realizing some of the numbered ones didn't have the 3Tk symbol.

Any thoughts???

[Phosphorus32]

The ЗТК means they are Russian or Ukrainian, ex-USSR.

The ones ending in 1 or 3 are Chinese.

If both the ЗТК and 31 markings are present on the same stripper clip, then Bubba has been busy 

[Greatguns]

The ЗТК means they are Russian or Ukrainian, ex-USSR.

The ones ending in 1 or 3 are Chinese.

If both the ЗТК and 31 markings are present on the same stripper clip, then Bubba has been busy 

That's what I'm saying, the 3Tk is on all but a couple and all but one are either numbered or lettered. Wondering if they are Russian that made their way to China and got re stamped. Pics will have to wait until tomorrow sorry.