I guess this dripping steel wasn't from the coal fire behind it.
Unless it was due to different physics.
Sorry Rat. A coal fire won't melt steel. If it did coal fired steam engine boilers on railroads would have melted.
What you are looking at is a forge. A forge takes an extreme amount of forced air to get enough oxygen into the coal to achieve temps where steel can be formed into different shapes. It would have taken a hurricane to provide enough air to get temps high enough in the WTC's. Then they wouldn't have the concentrated hydrocarbons anyway. carpet and ceiling panels burn up in seconds when doused with JetA. Notice on all the videos the bright orange flame upon impact. THAT was almost ALL of the jet fuel flashing off and burning. Then ya have to figure a way to contain the heat to have it build up to the required temps. Not possible with the windows being blown out right from the gate. A carpet/ceiling panel fire did not melt any steel.
Simple to test. Get yourself a patch of carpet...a ceiling panel and a gallon of kerosene throw em into a oil drum and light it off after ya lay a measly 1/4 inch thick piece of 2' by 2' angle steel across the top. I gaurantee you will not be able to bend it at the maximum heat of that experiment. The dimensions of the steel that supposedly "melted" in the towers was like 2 in or 3 inch thick 2 foot by four foot I beams. There wasn't enough energy in all of the fuel available to melt ONE of them under the most perfect conditions WITH forced air.