Is this apples for apples?

This is a question which I often get asked.

As a supplier to the glass and window industry we've developed our products to address the commonly requested needs of the industry – 

1. Save time
2. Reduce rework
3. Address health and safety needs

To suggest that any engineering company can cut some steel and weld up an equivalent to what we produce and provide an "apples for apples" comparison is rarely the case. The best thing about this question is it gives me the opportunity to show that the comparison is not "apples for apples" as there are differences, and differences which I believe are important to the customer.

I figure that the only supplier which offers an "apples for apples" comparative product must be either a copier or a company which sells on price alone. Suppliers with this profile rarely suit our customers!