BBTa special reduction in the price of goods sold to people who are going to sell the goods in their own shop or business 同行折扣,批发折扣
Examples from the Corpus
trade discount• Trade discount Suppliers may offer a trade discount to customers who work in the same business.• Standard trade discount is 20%, except by prior arrangement.
From Longman Business Dictionary
trade discountˌtrade ˈdiscountCOMMERCE
a lower price offered by a producer to a shop or business
Our normal trade discount (33.3%) will be applied.