galvanized steel and plastic
Galvinised mild steel,
Bronze was the most common material used to make toys and figurines in harappan civilization.
The most commonly used material to make needles was antler, sometimes bone was used.
Leather is considered to be the most durable material for luggage.
tungsten
silicone
Silk is the most popular followed by wool and nylon.
Hands down - wood.
No, Roman aqueducts were left in their natural state for the most part. They would be the color(s) of the material used to make them or of the material used to face them.
normal wood
Wooden sticks (thick) and iron.
No, pipes are made of PVC. Whirley hospital mugs are made from polypropylene.