Addresses of Each Company:
No.1 Company: west side of Xiaotao Park, Langda Road
No.2 Company: north side of Dongjiabao Village, Bayang Road
No.3 Company: west side of Donggugang Township, Anci District, Langfang City
No.5 Company: east side of Donggugang Township, Anci District, Langfang City
