Laoying was born in Qingdao, and its products involve high-tech precision instruments and equipment in the fields of environmental atmospheric monitoring, industrial waste gas monitoring, environmental emergency monitoring, environmental water quality monitoring, and technical measurement and testing. At present, Lao should have professional production and research equipment, strong technical strength, a sound management system, and a sound marketing and service network. Our products cover many fields such as environmental protection systems, scientific research institutions, colleges and universities, factories and mining enterprises, quality supervision and inspection, testing services, disease control and military technology, etc. They are distributed throughout the country and exported to Europe, Asia and Africa, providing users with more professional, reliable and stable technical support. In order to achieve technological management of the enterprise, Laoying has successively passed ISO9001 international quality system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health and safety management system certification, and introduced internationally advanced information management systems to transform the production mode, business processes, traditional management methods and business models of the enterprise, reorganize internal and external resources, improve enterprise efficiency and effectiveness, and enhance the competitiveness of the enterprise. Laoying people have always adhered to the corporate spirit of "benevolence, righteousness, propriety, wisdom, trustworthiness, gentleness, politeness, frugality, and concession" and the business purpose of "serving the country". Laoying people are committed to innovation and continuous improvement, pursuing a high degree of product quality and service and sincere dedication to customers - Laoying will always be a friend! Laoying "brand products - your sincere choice!