Steel
Steel is an alloy mainly composed of iron and carbon, the latter in a percentage lower than 1.7%. Steel is an isotropic and homogeneous material, increasing the amount of carbon leads to an increase in hardness and tensile strength and a reduction in resilience and plasticity.
Hemp
Hemp is a material with innumerable applications because it is very versatile and sustainable: from medicine to nutrition, from the textile industry to the paper mill. It is a sustainable cultivation because it has a rapid and abundant growth; being a weed, to grow does not require irrigation, herbicides and pesticides, nor pesticides and having no protein in it is not attacked by rodents or other insects.