Jerry, the Duro brand is what I run in that size. They are Tawian made. I've had a lot better luck out of them than the Chinese made tires. I got a new on a few weeks ago, $64.00
I had heard the Giti tire here in SC was going to start making 13" trailer tires. Most of the 13" trailer tires are China made, shy away from them if you can.