Contact Information：

• Office hours (local time)：Monday - Saturday: 8:00 - 17:00
  
• Business telephone: 
            +86-10-84858894
            +86-10-81522236 / 80
            +86-400-0656258
  
  Technical service: 
•           +86-10-82522234 
  Sales service: 
•           +86-15011000929
•           +86-1850137769
  Fax:    +86-10-84859894
  Email: cbmaster@163.com
  
  Address: 700m north of Beifang village committee, Yancun Town, Fangshan District, Beijing
  Postcode: 102413