Application These are flexible braided copper & tin copper used as ground braiding tapes for batteries. Flexible Braided Copper & Tin Copper tapes accordingly DIN 72333 Part 3 Standard Adapted to DIN 72333 Part 3. Cable Construction Flexible braided copper/tin copper tapes consist of wires with a stringer wire diameter of 0.16 to 0.2 mm. Surface: Plain copper or Tinned. Technical Data Material: Annealed electrolytic grade copper wire. Wire Diameter – 0.16 to 0.2 mm. Packing: In rings or spools or wooden drums.