"Evaluate" a string (assembled) that is returned from a table

I'm looking for a way to "evaluate" an assembled string that is stored in a table.
The table has string data with many types of special characters such as nchar(160) or nchar(8204).  Many columns of it in many rows.
As a simple example let's take '>' + char(160) + '<' as the string data, and I want it to return "> <".

Looking for something that would be akin to SELECT EVALUATE_STRING(StringData) FROM Table.

DECLARE @TestTable TABLE(Seq INT IDENTITY, StringData nvarchar(100))
INSERT INTO @TestTable VALUES ( '''>'' + char(160) + ''<''' )  --non-breaking space

SELECT Seq, StringData 
	FROM @TestTable

--Shows the desired result when not selected from a table
SELECT '>' + char(160) + '<' AS 'Direct_Select__Desired_Results' 

--If I try a select statement, it doesn't work.
SELECT Seq, (SELECT StringData) AS 'Subqueried_Data' 
	FROM @TestTable

--How do I get the desired results when selecting from a table?  
SELECT Seq, /*??*/ StringData AS '??Evaluated_StringData??' 
	FROM @TestTable

Suggestions?  I hope it's simple.

Thanks.

SQL Server 2008