Europe's largest economy, Germany, recently activated an emergency plan to manage gas supplies that the natural gas could be rationed if supplies are disrupted or disrupted by a stand-off over Russian demands to pay for fuel in rubles. German Vice-C…
Concrete is a stone mixed with water, sand, stones and some chemical additives, if necessary, in a particular proportion. Foaming occurs when concrete is made due to agitation. The appearance of a large amount of foam will lead to a decrease in the s…
Tungsten-copper rod is an alloy of tungsten, copper, and other elements. Copper content in commonly-used alloys ranges from 10% to 50%. Powder metallurgy is used to prepare the alloy. The alloy has high electrical and thermal conductivity. About…