GYW is a specialized cold-chain system integration service providers in research and development, production, sale, trade, engineering, and construction. Our group is relying on the Chinese Academy of Sciences and their strong technical support. We have our deep technological strength, also closely cooperated with Beijing University and other prestigious universities. We provide advanced scientific, reasonable, first-class solutions for cold chain system. We are a leading manufacture of refrigeration industrial products in China We have complete range of products: Refrigeration unit Condensing Unit Cold Storage Plates(PU Panel) Cold Storage Doors Cold Chain Storage Refrigeration Valve Visit our website, more surprises for you Wish to get your early inquiry soon.