We are interested in getting product information on your heavy duty exhaust clamps.Purchases would be boxed 50 per size per box.Sizes: 1 1/2 ", 1 3/4", 1 7/8 ", 2", 2 1/4 ', 2 1/2 ", 2 3/4 "& 3".Do you have an electronic catalog of your parts.How do we get samples for testing.What are your ordering requirements and pricing.