They're still in business today and manufacture the explosive squibs that are used inside some brands of permanently installed aircraft fire existing systems. But it's really a pretty small, contained explosion. I think they also do airbag inflators.

I had a chance to be onsite at a different facility when they set of the SEMTEX in their 25 acre blasting site. It was impressive. A true earth-shattering kaboom. They were welding a plate of titanium to a plate of aluminum for us. http://highenergymetals.com/