Main products: ventilation pipes, galvanized ventilation pipes, exhaust and smoke exhaust pipes, * * * plate flange air ducts, angle steel flange air ducts.

Address: Cuizhuang Village, Zangcun Town, Qingyuan District, Baoding.

2. Guangzhou Feng Ling Iron and Steel Processing Co., Ltd.

Main products: * * plate flange, galvanized ventilation pipe, spiral duct processing, tinplate processing, tinplate ventilation engineering.

Address: Building 2, No.6 Xinqiao Village, Lianlu Road, Dalong Market, Panyu District, Guangzhou 103.

3. Shanghai Rong Feng HVAC Equipment Co., Ltd.

Main products: air duct, galvanized iron duct, smoke exhaust duct, ventilation duct, fresh air duct, exhaust duct, stainless steel duct, spiral duct, angle steel flange processing, galvanized ventilation duct.

Address: Building 3, No.307 Xiangting Road, Chedun Town, Songjiang District, Shanghai.

4. Nanjing Hengchuang Ventilation Equipment Co., Ltd.

Main products: ventilation air duct, galvanized air duct, spiral duct, galvanized air duct, * * plate flange air duct, angle steel flange air duct, welding air duct, fire-fighting air duct, environmental protection air duct, air duct fittings, etc.

Address: E-30, Lukou Chuangzhi Industrial Park, No.37 Shenzhou Road, Lukou Street, Jiangning District.

5. Foshan Nanhai Xincheng Ventilation Equipment Factory

Main products: spiral duct, galvanized ventilation pipes, galvanized spiral duct, elbows, round heads, large and small heads and flanges.

Address: No.2, Hengkou Industrial Zone, Xia Dong, Pingzhou Town, Nanhai District, Foshan City, Guangdong Province.