[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - Ventilation ducts] duct air conditioning system should meet the following requirements: 1) rectangular duct side length is less than or equal to 900mm, the bottom of the panel should not have to fight seams refrigeration room works, when more than 900mm, should not have the lateral seam; 2) used duct bolts, nuts, washers and rivets shall be used to match the performance of the pipe, the material does not produce electrochemical corrosion, or galvanized or other anti-corrosion measures taken, and shall not use blind rivets; 3) should not be equipped with reinforced frame and duct reinforcement bars, duct flange connection can not not use S-shaped cutting, angle cutting and vertical joint angular Cuttings; 4) air cleanliness level of Class 1 to 5 air conditioning system shall not be used duct seams snap; 5) Duct cleaning may not be used for human and material hazardous cleaners; 6) galvanized shall have galvanized steel duct layer phenomenon severely damaged plant cooling projects, such as the surface of a large area of ??white, pink and so the zinc layer. [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - decontamination] decontamination control products (such as silicon chips, etc.) atmospheric temperature and humidity, cleanliness and contact works, so that products can be in a good environment space in production and manufacturing. Design and construction process of this environment can be called space decontamination. Decontamination is a very broad application of the basic industries supporting industries ventilation pipe works (21 century) in the electronic information, semiconductors, optoelectronics, precision manufacturing, medicine, biotechnology, aerospace, automotive and many other industries are spraying applications, and in accordance with the requirements of industry, precision and clean, class differences as well. HVAC Engineering | Tianjin Jinzhong Ji decontamination company (certified) | HVAC engineering provided by the Tianjin Jinzhong Ji purification equipment. Tianjin Jinzhong Ji HVAC purification equipment Limited (www.Jzjnt.com) is a leader in Tianjin, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the group leadership with the staff warmly welcome all inquiries negotiations to create a better future for the base.