THE TANK IS UNDER THE TRUNK FLOOR AND IT IS A STEEL ONE.
No, steel is a metal.
Using plastic over steel wings on a windmill is a good idea because the steel will eventually rust. The steel is heavier and the motor on the windmill will have to work harder to turn steel, than plastic. The cost of the plastic is actually a little more than steel, though.
Volvo.
lawn mower blades are made of steel but some are made of plastic
sheet metal, steel coil, slit steel coil, steel round bars, steel flat bars, steel channels, plastic resins, plastic sheet, wood, fiberglass, graphite
Steel for the bladeWood or strong plastic shaftHandle from steel and wood, or sometimes hard plastic.
steel
steel
If by plastic you mean a material made from plastic as opposed to plastic deformation of say steel for example, then yes, they are synthetic.
Not all horseshoes are made from steel. Though usually made of steel, aluminium is also sometimes used. Aluminium shoes are dearer than steel. There are also plastic-coated metal shoes, and even all-plastic horseshoes.
steel and plastic
Steel wool.