the spool wire could be electro and hot-dipped Galvanized steel wire, stainless steel wire,PVC wire SPOOL WIREWire Materials: Stainless Steel Wire , GALVANIZED STEEL WIREFine Wire Sizes: 0.016 to -0.08mm. Custom orders accepted.Fine Wire Application: Widely used in fields of petrochemistry, aviation, spaceflight, textile, printing, electronic communication, environmental protection, medical ...