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In today's urban construction, the power supply is one of the indispensable infrastructures. As key equipment in the power system, the 1600 kva dry-type transformer plays an irreplaceable role in ensuring the safety and stability of urban power consu…
Diamonds are forever, Gold is precious but which is rarer? Gold is a heavy metal formed during the collision of neutron stars and is one of the rarest elements on Earth.During the formation of the earth, heavy elements gradually accumulated towards t…
Natural flake graphite is a natural crystalline graphite, which is shaped like a fish-phosphorus, belongs to the hexagonal crystal system, and has a layered structure.…
Foam concrete contains a large number of closed pores, the air in the pores is a good adiabatic medium, which can cut off the heat exchange.…