How are shopping trolleys manufactured?

[age]

How are shopping trolleys made?

What is the metal cage made from? How are they welded?

Anything on how they are made in bulk and any other ideas?

[Skids]

Made from steel rod and are bent and spot welded by automatic machinery on production lines.

[heathfield]

As an aside... They're pretty expensive. I know there's a company in the USA that makes lots of money refurbishing damaged ones, like those run over by a truck, etc. I've seen a couple that they've repaired, and you'd never know they'd been damaged. It's only the company's label that lets you know they're not brand new.

[SteveD]

Here is a site listing designs and materials:

http://www.shopequip.co.uk/cat.asp?pageid=55&subid=162

[Bob A Job]

I think they take large homemade BBQ's and cut the half oil drum off of the back and then make one wheel wonky.