- Polywis Technology Ltd.
- precious metal analyzer, rohs analyzer, gold analyzer, precious metal detector.
- Address:Honghudong'an 4-27B,Wenjin North Road,Luohu District Shenzhen Guangdong 518020 China
- Shenzhen Cfan JD Science
- gold tester, xrf spectrometer, precious metal analyzer.
- Address:5th floor,Huafeng Commercial Building ,chuangye 2nd Road, Shenzhen, Guangdong, China
- Quantum Techno Systems Pvt. Ltd.
- xrf gold analyzer, gold testing machine, x ray precious metal analyzer, laser marking machine, jewellary weighing machine.
- Address:3,Rifle Range Road,Belgharia., Kolkata, West Bengal, India
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