Tamagawa-do
- Country: Japan
- Type: Commercial
- Website: www.gyokusendo.com
- Update: 05-02
GYOKUSENDO Co., Ltd. is a Japanese metalworking company founded in 1816 and headquartered in Yan City, Niigata Prefecture. It manufactures high-quality copperware and is known for its "hammered copperware," a technique that allows it to apply a variety of colors to copperware.
