Please help review the agreement ab

Please help review the agreement about Maintenance Service Switch Cisco equipment in Rayong and Bangkok.
The practical have been made since 2013 but for this 2016 have just added equipment enhancement and duration of service.

ผลลัพธ์ (อังกฤษ) 2:

Help please review the Agreement About Cisco Equipment Maintenance Service Switch in Rayong and Bangkok.
The practical Made since 2,013th have been but for this 2,016 have just added DURATION Equipment and enhancement of Service.