I was looking on YouTube for some good lectures on mechanics of materials and I stumbled upon this gem. This video gave me a significantly higher respect for the spring industry in less than ten minutes.
Order their own alloys to spec. Check.
Cold/hot form springs up to 55 mm. Check
In house heat treatment and strain hardening. Check
In house testing and quality. Check
In house paint and coating. Check.
Awesome ties to F1 and Rally racing. Check!