I recently went online to purchase some 21"Blum Tandem slides. Used them before and I liked em. About that time my Internet provider decided it was time for a nap! So I called to place the order. After telling the sales guy what I wanted he asked, "Why Blum? Hettich Quadro's are as good if not better and about $8 a pr. less" After a brief discussion on the pros and cons I told him I'd look at the spec sheets and call back. Aside from being $8 a pr less the Hettich was made in Germany, the Blum in the U.S. I decided to go for the Blum's in spite of the higher $. But then I was told the "made in U.S." was a half truth, Blum's manufactured elsewhere, assembled in the U. S. So here's the question, does anyone know for a fact where Blums are manufactured? I try to buy U.S. when possible. But in this case I went for the Hettich.