High-Precision Cold-Rolled Steel with Smooth Surface for Automotive & Home Appliance Manufacturing

JINHENGKAI high-precision cold-rolled steel is refined through multi-pass low-temperature cold rolling and pickling treatment based on premium hot-rolled base materials, solving the problems of rough surface and large dimensional error of ordinary steel. This series of cold-rolled steel features ultra-smooth surface, no scratches or cracks, ultra-tight thickness tolerance and high flatness, becoming the preferred material for high-end precision manufacturing industries worldwide. Compared with conventional steel, our cold-rolled steel has higher surface hardness, better stamping performance and excellent paint adhesion, perfectly suitable for complex deep drawing, bending and punching processing.

Our cold-rolled steel includes mainstream grades such as SPCC, DC01-DC06 and ST12, widely used in automotive interior and exterior parts, home appliance shells, electrical cabinet panels, precision hardware and electronic equipment components. JINHENGKAI implements full-process quality monitoring from raw material screening to finished product inspection. Each batch of products is tested for tensile strength, surface finish and dimensional accuracy to meet strict industrial production standards. We provide customized surface oiling, anti-rust treatment and size slitting services. With stable supply capacity and competitive factory prices, we have become a professional long-term supplier for global manufacturing enterprises and steel distributors.