Usage patterns
〈物〉を特価で買うto buy something at a special/bargain price
I bought this TV at a bargain price.
〈物〉を特価で販売するto sell something at a special/bargain price
The store is selling its stock at bargain prices.
特価で提供するto offer (a product/service) at a special price
We're offering it at a special price this week only.