The catalog of Ming Tai include the main product as follow: 1. Constant Force Spring 2. Constant Force Motor Spring 3. Brush Spring (1) Single coil spring (2) Twin coil spring 4. Power Spring & Prestress Power Spring (1) Power Spring (2) Prestress Power Spring. The major manufacturing equipments are as follow: (1) Hardened & Tempered steel-strip furnace. (2) Slitting machine for steel-strip. (3) Edge trimming machine for steel-strip. (4) CNC forming machine for various steel-strip spring. (5) Rewind machine for various steel-strip spring. (6) Cleaning machine & temper furnace for spring parts.