the WASR rifles are essentially the exact same rifle made in the same factory, but probably at different times. Both imported by Century, and both fine servicable AKs made in Romania.
The RML is an egyptian Maadi in ban configuration, ie no muzzle device, no bayo lug, and a butthole stock. I think they came in either 16" or 20" barrels. Its a good AK as well, and more desirable than the WASRs.