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ប្រភេទ​ទាំងអស់

ទំព័រដើម>អំពី​ពួក​យើង>វិញ្ញាបនប័ត្រ

ត្រួតពិនិត្យគុណភាព

Gaoya is continuously rated as AAA bank credit enterprise and it’s also the member of China Engineering Construction Supervision & Management Association.What’s more,it has passed the EN1090 (European standard) Steel Structure Production Certificate, អាយអេសអូ 9001:2008 Quality System Certificate,as well as ISO 14000 Environment System Certificate.

វិញ្ញាបនប័ត្រ