| |  |  | Inspection Report of Frequency Conversion Constant Pressure Water Supply Equipment |  |  | 
 | |  |  | Hygienic License for Frequency Conversion Constant Pressure Water Supply Equipment |  |  | 
 | |  |  | Inspection Report for Non-negative Pressure Water Supply Equipment |  |  | 
 | 
| |  |  | Hygiene Licence for Non-negative Pressure Water Supply Equipment |  |  | 
 | |  |  | Five-star Service Certification |  |  | 
 | |  |  | Environmental Management System Certification |  |  | 
 | 
| |  |  | Quality Management System Certification |  |  | 
 | |  |  | Occupational Health and Safety Management System Certification |  |  | 
 | |  |  | Association member of Chinese Architectural Society |  |  | 
 | 
|
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2/5 A Total Of 43message 9/Page 
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