A logo design or an image is transferred from a photographic negative onto the copper material through a sensitization process and an acid reaction process is carried out to form the pin design required.Min.Order |
100 Piece/Pieces |
100 Piece/Pieces |
100 Piece/Pieces |
100 Piece/Pieces |
Country of Origin:China (mainland)
Sales Method:Export ,Wholesale
Payment Terms:T/T