Longding Aluminum has formulated the "Metal Marking and Traceability Management Standards" to regulate the metal markings, and the "Production Process Card Management Standards" to regulate the filling and storage of production process cards during material production, and to record the true situation of products in the production process so as to ensure the products traceability.
 
Longding Labels despription ：
 
Labels instruction for aluminum foils wooden cases packing：
 
C  2020   04  13  -  66
“C”- Packing Team C；
“2020” – 2020 year
“04” – April
“13”—13th
“66”—the 66th packing wooden case；

Overall Meanings：“The 66th wooden box packed by members of packing team C on April 13, 2020”
 
Labels instruction of aluminum coils/sheets packing：
 
E  M   04986  -  A
“E”—Plant；
“M”— the mother coils type；
“04986”— Annual serial numbers；
 “A”— Volume A products after sliting the parent roll ；

Overall Meanings：“No. 04986 M product produced in workshop E, volume A after slitting”