Quote:
Originally posted by zcsohc
Yes mandrel piping is much better, much less restriction, people don't bend the pipes you realise they cut and weld mandrel bends. Somebody will do it but it may be pricey.
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Cut and welding is not mandrel bending at all. There is a few different ways to make mandrel bends. There is a special matchine that fills the pipes with sand and heats up the pipe and some other steps that can make a "perfect" bend with no crushed areas. Thats just one way to mandrel bend a pipe and others also.