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The oil-producing country agreement failed to sell oil prices without fear that the market tone is still weak metal pressure

China:China's supply-side reforms continued to advance, and de-leveraging actions were implemented in depth. With the increasingly prominent debt problems of overcapacity industries such as coal and steel, the game betwe...

What is aluminum and aluminum alloy?

   Aluminum is a kind oflight metal with small density(2.79/Cm3)and has good strength and plasticity.The aluminum alloy has good strength, the strength of the super-hard aluminumalloy can reach 600Mpa, and the ...

What is bronze?

   Bronze is the earliest alloy used in history. It originally refers to copper-tin alloy. Because it is blue-gray, it is called bronze. In order to improve the process performance and mechanical properties of ...

What is brass?

   Brass is an alloy of copper and zinc. The simplest brass is a copper-zinc binary alloy called simple brass or plain brass. Brass with different mechanical properties can be obtained by changing the zinc cont...

What is pure copper?

Pure copper is rose red metal, which is purple after the surface forms a copper oxide film. Therefore, industrial pure copper is often called copper or electrolytic copper. The density is 8-9 g/cm3 and the melting point ...