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　　Wuxi Gangyang Heating Ventilating Equipment Factory is located on the side of beautiful Taihu Lake. The plant specializes in producing marine air-condition vent duct appointed by China State Shipbuilding Corporation.
　　Our spiral duct and accessories have the characteristics of least resistance, strong intensity, corrosion resistance, smooth surface, flattening, great shape, fast installation, sealing better, efficient in working , etc. The product is suitable for shipping air-condition ventilation system and land air-condition ventilation system.
　　The main products are heat insulation spiral duct and non-adiabatic spiral duct and accessories. On the basis of producing non-adiabatic spiral duct in 1984, we have firstly developed heat insulation spiral duct in 1985 filled up the blank of the country. The test results tested by Tongji University showed that our product isn’t inferior to the foreign products at all. The products have passed the identification of Jiangsu Province in 1988, and have won the honorary title of excellent new product on The Sixth Light Industry Fair of Jiangsu Province in 1989.