Worm and I were the first to associate these guns with Bang/Pak. He was the one who insisted the D stood for "destination" while I never bought into it.
In our research, we found it VERY possible the guns supplied to these nations from China could in fact be our DP and DB guns and the quantities and times line up. We know they supplied Pakistan with them prior to the Bangladesh split in 1971. After India stepped in and kicked Paks azz for Bangladesh, they were left with many SKSs. Whe also know China then helped Bangladesh further with small arms aid and later SET THEM UP TO MAKE THE T56 AK47.
You may read on pooperj site about "Bangladesh made sks information coming soon" hork spit bork bork, but I assure you..... He didn't do his research. He read somewhere "t56" and assumed the sks, but the reference is to the AK. Dont hold your breath waiting for his revaluation.