Copper, aluminum, zinc and rubber in Shanghai Stock Exchange are all 5 tons/hand, fuel, rebar and wire rod are all 10 tons/hand, and gold is 1 1,000 grams.

Except for polyethylene and PVC, all the others (soybean, corn, soybean meal, soybean oil and palm oil) in Dalian Stock Exchange are 10 ton/hand.

Hard wheat, strong wheat, sugar, indica rice 10 ton/hand, cotton, PTA and vegetable oil 5 ton/hand.

CICC's stock index is 300 yuan per point.

Hard wheat is wheat, for example, the standard grade is second-class hard winter white wheat

Strong gluten wheat is strong gluten wheat, and the standard grade is second-class high quality strong gluten wheat.