Shanghai Hongguang Tungsten & Molybdenum Technology Co., Ltd.is the birth place of the very first piece of Tungsten wire inChina, established in 1917, was originally the plant of GE-EdisonCompany. We passed the audit of ISO 9000 Quality System in 1997.Our products can be found all around the world, and our brandRenmin is enjoying high reputation both home and abroad.