Depends on the wall thickness but most automobile muffler and exhaust shops bend and form their own standard and custom exhaust and tail pipes from straight tube rather than use stock pipes. Many of those bending machines are computer controlled to allow forming of factory pipes from straight tubing.
The company ENERGY PRODUCTS IN BELGIUM e-mail: info@energy-products.be manufacturers seamless elbows using pipes in stainless steel and special alloys.
Elbow Forming Machine
Re: Elbow Forming Machine
