Materials and Construction
Lead is

Used as a cathodic material
Not resistant to corrosion
Used as a shock absorber (in mattress form) between the foundation an steel framework of skyscrapper buildings
Not used as pigment (in its compound forms) for paints

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Materials and Construction
Monel alloy is

Not suitable for making kitchen utensils
The costliest of all the alloys of nickel
Not used in cast and wrought forms
Used for making steam valves and turbine blades as it resists steam attack at high temperature

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