self-improvement, with a new concept and operation strategy, facing the country, to the world. FAQQ1: What information do you need to selec the suitable fan model?
A: Flow rate, pressure, voltage, altitude, application, etcQ2: How long is the warranty time?
A: One year in the condition of normal use.Q3: What kind of certificates can you provide?
A: Our factory have ISO9001 certificates.Q4: How do you control the product's quality?
?A: All products must pass the static and dynamic balan