t belongs to flat wire, a kind of flat wire, which can conduct heat and electricity.

Flat wire Zhi, also known as flat wire, flattened wire, flat angle wire or ultra narrow strip, refers to the anisotropic metal wire with Dao cross-section similar to rounded rectangle, with thickness from 0.025 mm to 2 mm, and width generally less than 5 mm. The ratio of width to thickness varies from 2:1 to 50:1. Because the shape of the flat wire is ribbon like, it is sometimes called ultra narrow flat band. Compared with common round wires, flat wires have unique advantages in heat dissipation, welding contact area, fatigue resistance and hardness control. https://www.zegotawire.com/flat-...re-flat-copper-wire.html