[randog]

"It hit a platform car and then started spilling molten steel in the direction of the shift transfer room where they were having their safety meeting. That was the most tragic moment," said Jiao...

Not to mention ironic.

[Prophet in the wilderness]

I can not even imagine all that melted steel encapsulating their bodys.
I don't know how much steel was in that , I would guess the floor was 1 or 2 feet thick more or less a solid slab of steel.