TF card socket, shell, colloids, terminals, (since the bomb deck springs, hooks) composition. Partakers within the welding, Weld; shells, and does not bomb; simple, plastic deck. The shell material copper nickel-plated, stainless steel, nickel plated, nickel-plated steel case; phosphor bronze gold-plated terminals, solder part of the gold-plated (tin); LCP high-temperature environmental materials and PE plastic PPS two. Mating cycles, the machine measured 10,000 times, manually measured 8000 times.