Sorry, we can't provide the specific address of Longgang District of Shenzhen Swan Home Economics Company, but we can provide two addresses: No.604, Yuemeite Building, Gaoxin Nanqi Road 1, High-tech Zone, Yuehai Street, Nanshan District, Shenzhen, and B80 1, Block B, Huihai Plaza, Sanlian Chuangye Road, Longhua District, Shenzhen, Guangdong Province. I suggest you contact the local Swan Home Economics Company to get more accurate information.