Please quote an aluminum radiator that is 920x2140 mm in size. It should be a single pass unit with between 65 - 75 aluminum tubes in the 2140 mm length. There should be one 1/2' aluminum entry pipe along the 920 mm lengths, on on top and one on the bottom. I am looking for a quantity of 7500 pcs for the first order and then approximately 15,000 on the second order.