[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - Ventilation ducts] to solve a variety of ventilation ducts principles collide and coordination, generally: "tubules allow bassoon, there is pressure to make without pressure." For example, the water pipe and duct collision, you should water pipe bend. Cold and hot water pipes and water pipes touching angle iron flange pipe, you should change the cold and hot water pipes. [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - duct] 1.2 Terminology (1) inspection lot: according to the same production conditions prescribed manner or aggregated with them for inspection by a certain number of sample test body composition. (2) test: A test project performance measurement, inspection, testing, a total of flange pipe, and the results were compared with the standard requirements to determine whether each of the activities carried out by qualified performance. (3) the transfer of inspection: undertake side by side with the completion of construction and the possibility of both parties to continue construction inspection activities to make confirmation. (4) the master project: construction of safety, health, environmental protection and public interests play a decisive role in the test project. (5) the general project: In addition to the master project inspection items. (6) for sampling: In accordance with the provisions of the sampling plan, randomly from entering the material, components and parts, equipment or construction engineering inspection project, approved by the examination of a number of samples drawn test conducted. (7) Duct: metal, non-metal sheet or other material made for ventilation ducts. (8) Duct: using concrete, brick and other masonry materials, ventilation channels are used. (9) Ventilation: air, exhaust, dust, pneumatic conveying and smoke control systems engineering collectively. (10) Air Conditioning Engineering: Air conditioning, air purification and collectively clean air conditioning systems. Galvanized pipe | Tianjin Jinzhong Ji Pipeline Project | Tianjin Tianjin Jinzhong Ji pipeline provided by HVAC 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.