Qingdao Zhongrui: Aerosol photometer video introduction

Qingdao Zhongrui Intelligent Instrument Co., Ltd. was established in 2007, focusing on the research and application of portable environmental monitoring instruments, clean room testing and evaluation, biosafety, metrological traceability and other testing instruments. The company is committed to providing more professional products and thoughtful services for environmental protection, research institutes, testing institutions, disease control and pharmaceutical companies, and other units.