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| Head Office |
| 6th Floor, Department of Industrial Works Building, 57 Prasumen Road (Banglumphu) Pranakorn Bangkok 10200 Thailand |
| Tel : 0-2280-7272 |
| Fax : 0-2280-7273, 0-2280-7277 |
| Email Address : general@thaieei.com |
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| Operation and Standards Center |
| 975 Moo 4 Bangpoo Industrial Estate Soi 8,
Sukhumvit Road, Km.37 Tambol Praksa, Amphur Muang,
Samutprakarn 10280 |
| Tel : 0-2709-4860-8 |
| โทรสาร : 0-2324-0917-8 |
| Email Address : testcenter@thaieei.com |
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