Whats the usual price for one piece 18*24 inch advertising board with printing

Summary

Polypropylene sheet was a new material which was durable and recyclable

Recently days. We start production for our US customer about advertising board series

We are professional in advertising board making many years

Our sheet was durable with long life span

Usual one 18*24sheet will be less than 1 usd

If printing was simple. It can be much cheaper