EG is ethylene glycol;
NR is rubber;
Memorize futures codes quickly.
The one-letter one must be from Dalian.
All the suffixes with U are in Shanghai. In which AU is gold, CU is copper, FU is fuel oil and RU is rubber. Together, it is ACFR gold and copper burning glue.
A, B and C are beans 1, 2 and corn in turn; Corn is the English word for corn.