The things in the mall are not bad, but they are not guaranteed in ordinary stores. The bar owner in the gym sells that thing.

I bought a set of dumbbells+barbells and a barbell bed in the mall. The weight is very solid. But dumbbells and barbells are in QQ Mall. Black King Kong flagship store. Be careful to buy heavy things. Most of the weight of the package is empty. The taste is particularly strong. It's best to buy electroplated ones.