What kind of pot is the pot for steaming buns?

It's an ordinary steamer that used to be made of aluminum. It's been a long time since I've used it, and it's been leaking, but I used to live in a cottage, and I could put a stove top on the lid and press it down. Then we moved. I used a frying pan and put it on top of it in reverse, which also solved the problem. You can buy a steamer, but it's not cheap. My family bought a Nepalese one for over 700 dollars. If you don't want to replace it, put something heavy on it. Or wrap a towel around the lid where it meets the cage drawer. Both can prevent air leakage