Because the trend of copper futures has been stronger than that of zinc since 2009, copper will lead the rise, rising early and rising fast; When it falls, zinc falls early and quickly; So what the landlord said is that copper goes up and zinc goes down. However, in the short-term rhythm, unless the market reaches a climax, the stage of sorting out chips is of little significance, and the main force often even comes in the opposite direction, just like the weekend copper price rose sharply, but the non-ferrous plate fell on Monday and Tuesday.