Michael and Lisa got married six moths after their engagement
This character is the most popular in world if comics.Here are a lot if films ans cartoons about him. His is known as Spider Man
Russian Navigator, Admiral. Came from the Baltic nobility. Ivan Kruzenshtern and Yuri Lisyansky on the ships "Hope" and "Neva" made the first Russian expedition around the world.
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1. Steel - its alloy and the most important metal in industry is iron.
2. Steel is strong and stiff.
3. Steel corrodes easily through rusting.
4. Stainless, steels of low carbon content, medium-carbon steels, high-carbon steels and silver steel. The used in the manufacture; used as structural steels; used in cutting tools, surgical instruments, razor blades and springs.
5. Manganese gives extra strength and toughness. Steel containing 4 per cent silicon is used for transformer cores or electromagnets because it has large grains acting like small magnets. The addition of chromium gives extra strength and corrosion resistance, so we can get rust-proof steels.
6. Of mild steel can made sheet iron, wire, and pipes. Of medium-carbon steel can made structural steels.
Of high-carbon steels made cutting tools, surgical instruments, razor blades and springs.
7. Both mild and medium-carbon steels are suitable for forging and welding.
8. The addition of chromium gives extra strength and corrosion resistance, so we can get rust-proof steels.
9. Heating in the presence of carbon or nitrogen-rich materials is used to form a hard surface on steel.
10. High-speed steels alloyed with contain chromium and tungsten plus smaller amounts of vanadium, molybdenum and other metals.