Bolts are generally made of medium carbon, plain or low alloy steels depending on the grade (property class). Higher grades are usually made of low alloy steels. Some grades have small additions of Chromium or Boron.
The use of a wrench is to tighten and loosen nuts and bolts.
its a steel material used in pipes
Cast Iron because of its strength and mass
he use bronze he use wood.
An alloy of aluminium is used usually magnellium
For fastening together two pieces of material.
Clay
what is material used for making dies in pressure die casting of alumionium alloys
The radiation comes from the material used.
Dry graphite
i think from different gases !!!!!
It is used for making petrochemicals
tungsten or sometimes copper
mud and fibers
Silicon
cotton
Leather and plastic