问题描述：
Hebei advertising billboards
问题解答：
我来补答⑴How much does it cost to make a billboard?
There are several types. Inkjet printing is calculated on a square meter basis, usually 25 to 50 yuan/square meter. The steel iron frame inside is relatively low. It is more expensive because the materials are different. Generally, small store advertisements only cost about 300 to 400.
