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通神时时彩计划软件 www.rsfrv.icu Founded in 1999, Polymath Technology has become a leading smart lock developer and manufacturer in China after nearly 20 years development. We produce and sell various types of fingerprint locks and PIN code locks that fit different mortises in different countries. The product line also includes different types of wireless door bells and cameras that works with our smart locks. Through this way we are building a smart home system to make homes smarter and more secure. The products are sold abroad, mostly to North America and Europe. We also make different models of biometric access control system for the banks in China. We have been the exclusive fingerprint access control system provider for the ICBC, Industrial and Commercial Bank of China, the biggest bank in the world in the past 10 years.