Hangzhou Xingda ventilation equipment to undertake all types of tin ventilation engineering, Fuyang area ventilation pipes, tin ventilation engineering Hangzhou, Shaoxing tin ventilation engineering, fume purification project in Hangzhou, Hangzhou, engineering, installation and design of ventilation, fire smoke hotel kitchen project, Hangzhou, central installation of air conditioning ducts and other train services. The company has experienced professional and technical personnel, specialized in various industrial and mining enterprises, hotels ventilation pipe installation, ventilation ducts schools, hospitals and other ventilation and exhaust gas treatment, waste dust collection of design and installation. Flange angle by direct stamping die, and when you can install the card in the four corners. Between flange connection with Falanca, it is made of galvanized steel plates, after Falanca molding machine cut into uniform size for installation and use connections. TDF flange plate due to plate integral with the pipe, do not like the angle flange-like punch riveting, the pipeline connecting the two sections dedicated Falanca, bolted flange rear corners plus 90 degree angle. Hangzhou Xingda ventilation equipment to undertake all types of tin ventilation engineering, white metal ventilation pipes, tin ventilation engineering Hangzhou, Shaoxing tin ventilation engineering, fume purification project in Hangzhou, Hangzhou, engineering, installation and design of ventilation, fire smoke hotel kitchen project, Hangzhou, central installation of air conditioning ducts and other train services. The company has experienced professional and technical personnel, specialized in various industrial and mining enterprises, hotels ventilation pipe installation, ventilation ducts schools, hospitals and other ventilation and exhaust gas treatment, waste dust collection of design and installation. First, it is the 'touch' texture. Generally, coarse particles are likely to blend the impurities. Second, it is to 'see' colors. PP-R pipes are mainly lime green several, consumers tend to believe that white is the best, central air conditioning and ventilation pipes, in fact, color is not judged good or bad quality standards. Third, it is the 'smell' odors. PP-R pipe main material is polypropylene pipes does not smell good, smell the difference there is likely to be blended polyethylene, polypropylene instead. Fourth, is 'pinched' hardness. PP-R pipe has a considerable hardness, casually can squeeze tube deformation, certainly not the PP-R pipe. Fuyang District exhaust ventilation ducts ventilation ducts _ _ Hangzhou Xingda ventilation (certified merchants) are provided by Hangzhou Xingda ventilation equipment. Road Zhiyuan, temper forward. Hangzhou Xingda ventilation equipment (www.tz1288.com/shop/index_6525.html) aims to become and you win symbiosis, strategic partners to move forward, more determined to become a fan, ventilation equipment most influential business , and you leap together to success!