Dear Khun Supalerk
Regarding VCI Paper, we would like to recommend as follows,
1. ACK-6(M) width 1000mm x Length 100M. (roll type)
Use for Copper or Copper Alloys,
2. ASK-6(M) width 1000mm x Length 100M. (roll type)
Use for Iron and Non-Ferrous.
If your Copper Product have content of Zinc or Silver,
We recommended to use this type.
Please see more details in attached files.
Best regards,
Suradej