CGOLDENWALL CGOLDENWALL is a manufacturer specialized in gold purity tester, we will provide to you the English Instruction and Professional Service. If you get it from others , you may not get our professional service. Any question,our team will give you Professional after-service. 【Specification】  Model Number:AU-6000K Density resolution:0.001 g/cm3 Minimum weight:5g weight resolution: 0.01g Interface: RS-232 【ATTENTION】  Please check the samples before testing (1)Hollow sample If the holllow is closed and liquid like water can’t get in, it can’t be tested. If the hollow is not closed, it can be tested. (2)Gemstone inserted Sample can’t be tested. NOTE:  Thank you for choosing us! All products sold by our company, we will enjoy the strict assurance of the quality and excellent service, you can feel comfortable to buy and use.
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