The numbers would suggest they have enough material for at least two to three years of war.
The question is can they replace the men that drive/operate/maintain the equipment. Driving a tank through the wilderness and survive is not something you learn in a few weeks. Replacing artillery pieces that wear down really fast due to low quality north korean shells is also a problem.
Not a poblem for Putin are men. He has emptied the prisons for cannon fodder that actually had a positive effect on his expenses, also giving time to train regular troups. Time is clearly on Putin's side with the US's incoming orange guy.