Agreed. Class D extinguishers are expensive, but we're talking ~$500 instead of ~$50 for an ABC (obviously depends on size). Both costs are trivial for any manu

Agreed. Class D extinguishers are expensive, but we're talking ~$500 instead of ~$50 for an ABC (obviously depends on size). Both costs are trivial for any manufacturing company, and frankly I'd be shocked if they both weren't required by code. The only thing that I can think of is perhaps no one noticed until it was too late? And then the employees didn't want to touch it until the fire department showed up. If there was a hydraulic leak, they used the sand bags to stop the spread of the fluid, and then used foam to actually put out the fire? No clue.