Dalian soybean variety No.2 code (b)+ delivery year (2 digits)+delivery month (2 digits), such as b060 1.
Dalian soybean meal variety code (m)+ delivery year (2 digits)+delivery month (2 digits), such as m050 1.
Dalian soybean oil variety code (y)+ delivery year (2 digits)+delivery month (2 digits), such as y0609.
Dalian corn variety code (c)+ delivery year (2 digits)+delivery month (2 digits), such as c050 1.
Zhengzhou hard wheat variety code (WT)+ delivery year (1 digit)+delivery month (2 digits), such as WT503.
Zhengzhou strong wheat variety code (WS)+ delivery year (1 digit)+delivery month (2 digits), such as WS503.
Zhengzhou 1 cotton variety code (CF)+ delivery year (1 digit)+delivery month (2 digits), such as CF505.
Zhengzhou sugar variety code (SR)+ delivery year (1 digit)+delivery month (2 digits), such as SR705.
Shanghai copper variety code (cu)+ delivery year (2 digits)+delivery month (2 digits), for example: cu0506.
Shanghai aluminum variety code (al)+ delivery year (2 digits)+delivery month (2 digits), for example: al0506.
Shanghai rubber variety code (ru)+ delivery year (2 digits)+delivery month (2 digits), such as ru050 1.
Shanghai fuel oil variety code (fu)+ delivery year (2 digits)+delivery month (2 digits), such as fu0506.