Technology is the core of enterprise development and product quality. Whatever  pre-sales guidance or after-sales training, as well as the development and research of related oxygen products, Longfian always give you the most reliable support.

Training manual

For 25 years, Longfian has insisted on occupying the market with after-sales service. Every area has equipped professional after-sales service centres, who have rich professional technical knowledge and capabilities to solve with various problem efficiently. Meanwhile, every year Longfian headquarter of chief Engineer visited the service centres to do the on-site training, ensure each service centre can timely solve with customers' problems.

Service manual