Need help authenticating chinese Qing and Republic coins.

Hello! Could you please help me and tell me if these coins are real or not? Can somebody say are these errors in weight and diameter are okey or not.
1 N#6816 32mm 11.63g
2 N#18177 33.5mm 11.34g
3 N#21919 29.5mm 8.15g
4 N#242469 28mm 7.08g
5 N#31919 28mm 7.23g
6 N#21487 28mm 6.93g
7 N#36474 28.5mm 7.25g

Even though I didn't check weights and diameters, they look genuine.

Thanks for help!