Performance：Bright and fine surface, good welding performance, etc
Surface：Bright surface
Application：Jewelry, precision bearings, decorative materials, medical equipment, etc
Steel material：201、302CU、304、316、321、410、430
Thread warp(mm)：0.8-10.0
Tensile strength(N/mm)：600-900（MPA）
Warp tolerance(mm)：±0.02
