The average wear difference of tetrachloroethylene on October 11 was 0.55 yuan/ton.

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According to the monitoring of the business agency, the average difference of tetrachloroethylene on October 11 was 0.55 yuan/ton (average difference = M10-M20 = 3018.89-3018.34).

On the same day, the perchloroethylene M10 moving average crossed the M20, and the difference turned from negative to positive, indicating that the market had a rising start signal.

[Principle of Central Difference]

(Source: Business Society)

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