Shanxi Jurun Pure Iron supplies pure iron grades DT4, DT4A, DT4E, DT4C, in diameters Ф6.5-Ф42mm. Features stable material, excellent for cold processing, low coercivity, and superior electromagnetic performance. Ideal for electromagnetic cores and instrument parts. Reliable service. Note: Select grade by magnetic level (A/E/C); annealing optimizes magnetic properties.