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Iron:
Pure iron is soft ductile and maleable.
Steel:
Is a ferrous and inexpensive so is used in industry
Cast iron:
Is used in manufactured object

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Are materials taken directly from nature that we procces into other materials .

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We prepare or refine raw materials to obtain naturals materials.

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When we procces raw materials ,they became proccesed materials.

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Resitance from being scratched.

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Resistance of being broken when we strike it.

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The ability of being deformed.

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The ability of being streched into a wire.

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-Natural wood
-Man -made wood
-Derivatives

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-Ferrous metals
-Non -ferrous metals

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-Natural
-Synthetic

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-Naturals
-Synthetic

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-Stone
-Binders
-Ceramic

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1.-Tensile strench: Resistance to streching.Good in longitudinal direction.

.2-Compressive strength: Resistance to being crushed.Better in transverse direction.

3. -Flexural strength: resistance to vending.Good.
4.Hardness: this can vary a lot. It depends on on the type .
5.Thougness: wood is though ,so yes, is good.
6.Thermal and electrical conductivity:It's very low.Wood is a good insulaitor of heat.
7.Sound conductivity: good .For this is used in instruments.
8.Colour:differents Woods,differnt colours.
9.Density:wood is a light material .It have less density than wáter.

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1. Plywood is formed by an odd number of thin  wood layers  called veneers

2. Chipboard is obtained from wood chips that are mixed with resin and then pressed.

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1. Paper is obtained by forming a paste out of wood and plant fibres

2. Cardboard is obtained by compressing several layers of paper

3. Cork is obtained from bark of the cork oak.

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Cooper:
Good conductor of electricity.
Resistant to corrision.
Ductile and maleable.
Tin :
It´s ductile and malleable .
It´s easy to work and melt.
Aluminium:
It´s very light. It´s resistant to corrosion. It´s good conductor of heat and electricity. It´s non-toxic, so it´s used in food packing. It´s very ductile and malleable. It´s easy to shape.
Properties of zinc:
It´s malleable and ductile. It´s a good conductor of heat and electricity. It´s highly resistant to corrosion and rust.