Beijing Challen Biotechnology Co., Ltd., headquartered in the Bio-pharmaceutical industrial Base Daxing District, Beijing, is a biotechnology company specializing in the R&D , manufacturing and sales of biomedical technology products. Challenbio is dedicated to providing users with excellent one-step solution  encompassing instruments, OEM technical services and reagents related to flow cytometry。Our product portfolio primarily includes traditional analytical flow cytometers such as the LongCyte™ and FongCyte™ series, the full-spectrum analyzer CytoStellar™, automated sample preparation systems, along with reagents and consumables. We cater to various fields including clinical diagnosis, biotherapy, biological research, pharmaceutical R&D, environmental science, food safety monitoring, among others, serving nearly 1,000 customers worldwide. Currently, the company has obtained ISO9001 and ISO13485 system certifications and is committed to developing high-end flow cytometers and ancillary products.