I found this on my old desk and then I remembered that I used to buy fake LEGO sets with parts like this. Maybe someone knows what the name of the brand that produces parts like this (I don't know if it's made in China or not but mostly from there)
Edit: the scale is the same as the real LEGO pieces, it doesn't have any emblem on the stud or part id.
Edit2: okay i add another pic and a vehicle set with a sticker. I try to rebuild it as i could remember it
Edit3: it was Chaobao but i need your help to find some information about this brand