1. Metals are important for industry because they can be easily deformed into useful shapes.
2. The main metalworking processes are rolling, extrusion, drawing, forging, sheet-metal forming.
3. Metals are worked mostly hot because new strain-free grains will gwow instead of deformed grains.
4. Cool working gives such properties as hardening metals and making the part stronger
5. Rolling is the most common metalworking process which is used during the work with aluminium, steel and copper
6. Extraction is pushing a billet to flow through the orifice of a die.
7. The type of extraction is back extraction
Объяснение:
As we know there are a lot of holidays which are celebrated by families. For example, some international holidays like new year or international women's day. As for me, I like our traditional holiday - Christmas. Christmas is always celebrated in our family. We all gather around the table. My siblings also visit although they are already married and live in another city. They bring presents to us. I with my mom cook the most delicious food for a party dinner. My father with my little sister decorates the room until the party. Then they help us. After having dinner we hand our presents to each other. Moreover, we dance and play some interesting games. So, that's why it's my the most lovely holiday at all
Объяснение:
2. After you (finish) the work (will we go) to the cinema?
3. (Do you want) a cup of coffee before you I (leave)?
4. As soon as everyone (is) in the class, we (shall start) the seminar.
5. When the exams (are) over, our group (will have) a party to celebrate.