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nanjing heguan science instrument co., ltd. is a technology-based enterprise specializing in the sales and after-sales service of laboratory analytical instruments. it mainly produces infrared spectrometers, handheld raman spectrometers, handheld raman spectrometers, (nitrogen, hydrogen) gas generators and other products.
www.njheguan.com 2025-02-05
beijing nico rongguang instrument co., ltd. is a manufacturer dedicated to the development and development of personalized customized gas distribution instruments. it provides you with intelligent dilution gas distribution instruments, infrared gas analyzers, dynamic gas distribution instruments, mercury analyzers, high-pressure gas distribution systems, liquid organic solvent gas distribution systems, gas generators, zero gas generators, mercury standard gas generators, exhaled gas alcohol content detector verification devices and other products. its business covers beijing, shanghai, tianjin, chongqing, zhejiang, jiangsu, guangdong, shandong and other places.
www.nicon.com.cn 2025-03-13