They were mostly imported by Norinco, and Polytech did not import this configuration. Almost always made at Factory /66\.
These are high quality guns but largely used as shooters, as there are more valuable collectors guns in more desirable configurations out there.
These are good pre ban guns, and are made to the same standards as all of the others, although undef-folders, and spikers surely are more covetable on the market.
Here are my 56 Fixed stock rifles in a video if you are interested.
Here is my Sile N.Y. 56S, from factory /66\

Alongside an 84S for comparison.
This gun is in The Valley Walker Collection.

They all came from the factory with 3x 30 round magazines, sling, Type II bayonet, oilier and gas tube reamer. Also, they have tube style cleaning kits inserted into the hole in their stocks.
Regardless of importer, all of the standard Type 56S Chinese AK are good solid copies of the fully automatic and internationally exported Type 56. Good reliable guns.
This gun is in The Valley Walker Collection.

They all came from the factory with 3x 30 round magazines, sling, Type II bayonet, oilier and gas tube reamer. Also, they have tube style cleaning kits inserted into the hole in their stocks.
Regardless of importer, all of the standard Type 56S Chinese AK are good solid copies of the fully automatic and internationally exported Type 56. Good reliable guns.