Plumbing vent pipe installation quality requirements: light leakage and air leakage test: leaked assay should adopt a strong light on the hole penetrating the plant ventilation system duct tight degree detection method ventilation cooling plant design, with a certain strength The security source. A low-pressure lamp 100W with protective cover of low pressure lamps, or other low-voltage light sources. Testing found slit-shaped light leakage should be promptly sealed. Hangzhou Xingda ventilation equipment to undertake all types of tin ventilation engineering, Hangzhou tin ventilation engineering plant ventilation engineering, ventilation engineering tin Shaoxing, Hangzhou fume purification project, Hangzhou, engineering, installation and design of ventilation, fire smoke hotel kitchen project, Hangzhou, central air conditioning pipeline installation 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. Plumbing vent pipe features: 5, thickness are controlled within 5-107μm of arbitrary choice; 6, no hydrogen embrittlement, no temperature harm the plant ventilation cooling system, which can guarantee the same mechanical properties; 7, can be replaced parts to be hot-dip galvanizing process; 8, good corrosion resistance, up to 240 hours of neutral salt spray test; 9, using hot dip galvanizing completed for highly corrosive environments various acid, alkali mist like; 10, may According to customer requirements, we designed a variety of customized duct. Ventilation cooling plant design, Hangzhou Xingda ventilation (certified), Lin'an City plant ventilation supplied by Hangzhou Xingda ventilation equipment. Hangzhou Xingda ventilation equipment (www.tz1288.com/shop/index_6525.html) is a leader in Hangzhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. Xingda ventilation in leadership with the staff warmly welcome all inquiries negotiations to create a better future Xingda ventilation.