TradeVerify We company is a professional manufacturer of tungsten jewelry and ceramic jewelry, located in Shenzhen, mainland China, and we have a long history in this line, which can date back to 1990 and now we have 4 factories and more than 600 professional staff in this industry, in early last year, we have improved our techniques and enlarged our capacity that we can produce 150,000per month, which can meet with various kind of clients from all over the world.