The primary copper is 5 tons, the minimum fluctuation unit is 10, and the fluctuation is 100 points, that is, the minimum fluctuation is 10*5=50 yuan. By looking at the number of hands, you can judge the value of one point. If you do ten hands, it is 500 yuan, and so on.

Copper, aluminum and zinc on the Shanghai Stock Exchange are 5 tons/lot, with the minimum price change 10 yuan/ton and fluctuation of 5 * 10 = 50 yuan.

Natural rubber and fuel oil are 5 tons/lot, and the minimum price changes by 5 yuan/ton, with a fluctuation of 5*5=25 yuan.

The lowest price of soybean, soybean meal and corn in Dalian Stock Exchange is 10 ton/lot, and the fluctuation range is 10 * 1 = 10 yuan.

Palm oil 10 ton/hand, minimum price change 2 yuan/ton, fluctuation 10*2=20 yuan.

Soybean oil 10 ton/hand, minimum price change 2 yuan/ton, fluctuation 10*2=20 yuan.

In Zhengzhou Stock Exchange, strong wheat, hard wheat and sugar 10 ton/hand, minimum price change 1 yuan/ton, fluctuation 10 * 1 = 10 yuan.

Cotton 5 tons/lot, minimum price change 5 yuan/ton, fluctuation 5*5=25 yuan.

PTA is 5 tons/lot, and the minimum price changes by 2 yuan/ton, with a fluctuation of 5*2= 10 yuan.

Rapeseed oil is 5 tons/lot, with the minimum price change of 2 yuan/ton and fluctuation of 5*2= 10 yuan.