-
E-mail
nn.cao@longduoholding.com
-
Phone
17610896687
-
Address
2nd Floor, Building 2, No. 1100 Huihe South Street, Chaoyang District, Beijing
Langduo Technology (Beijing) Co., Ltd
nn.cao@longduoholding.com
17610896687
2nd Floor, Building 2, No. 1100 Huihe South Street, Chaoyang District, Beijing
06.24,20251
Niton handheld spectrometer non-destructive sand cutting gold and other precious gold countries