What are suspension bridge cables made of?
Suspension bridge cables take steel wire, zinc, paint and wire rope directly. Trace them back and you pass 27 made things on the way to 15 raw materials.
How suspension bridge cables are made See it on the map
What goes straight in
From the ground: 15 raw materials
- Zinc ore through zinc
- Air through zinc
- Water through paint
- Sulfur through zinc, sulfuric acid
- Titanium ore through paint, titanium dioxide
- Iron ore through paint, pigment
- Limestone through steel wire, steel, quicklime
- Dolomite through steel wire, steel, magnesium
- Manganese ore through steel wire, steel, manganese
- Natural gas through paint, acrylic, methanol
- Rock salt through paint, titanium dioxide, chlorine
- Coal through paint, titanium dioxide, coke
- Crude oil through paint, pigment, carbon black
- Quartz through steel wire, steel, magnesium, metallurgical silicon
- Timber through steel wire, steel, magnesium, metallurgical silicon
Made along the way: 23 things
Metals 6
Chemicals and fuels 15
Sulfuric acidTitanium dioxidePigmentOxygen gasQuicklimeArgonChlorineCarbon blackPropyleneAmmoniaMethanolPropaneNaphthaCharcoalHydrogen