wholesale
“Wholesale” (= bán sỉ, bán buôn) is different from “warehouse” (=kho hàng).
At the warehouse nowadays they can sell things in wholesale and retail.
Buyers keep thinking that wholesale price is cheaper than retail price, thus commodities bought at the warehouse should be cheaper than that in a normal shop (minus delivery cost for example)

A normal shop with a sign “Wholesale” or “Warehouse” conceals in itself : Deceive, Inveigle, Obfuscate.