Spark "brand spiral wire is well-known all over the country. It uses high-quality Fe-Cr-Al and Ni-Cr-Al alloy wires as raw materials and adopts high-speed automatic winding machine with computer control power capacity. Our products have high temperature resistance, fast temperature rise, long service life, stable resistance, small output power error, small capacity deflection, uniform pitch after elongation, and smooth surface. It is widely used in small electric oven, muffle furnace, air conditioner, various ovens, electric heating tube, household appliances, etc. We can design and manufacture all kinds of non-standard helix according to user's requirements.