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I have delivered "Billets" or solid tubes of aluminum or steel. By flat bed truck. These customers will literally ram a tube into one end of a very hot machine (708 Degrees for Aluminum) and maybe use Nitrogen in a very cold form to prevent the set temperature of 708 degrees within 1 degree by computer every 3 seconds. The tube goes in one end with Fire and thru the middle coated in ice (-250 degrees) and then forced out a die into forms. A form may be a step. Take a look at any Tractor trailer and look at the steps on the fuel tank. Those are one peice extrusions stamped out while it is hot like a wife cookie cutting dough before baking. I hope this assist you in understanding. I just bought 4 3' flex track code 83 today and it ran me about 1.10 a foot. Cork and ballast will be a little bit more. That is a very small price to pay to have trains running. If there was no track I will need to file the flanges off and tie a string to each end to push pull the trains. Good Luck. Lee
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