
Certification Number : ATC-CAL-LM-7114
Date of Calibration: January 11, 2026
Test Due Date : January 10, 2027
Company : Daqing Oilfield Construction Group Co., Ltd.

Certification Number : ATC-CAL-LM-7114
Date of Calibration: January 11, 2026
Test Due Date : January 10, 2027
Company : Daqing Oilfield Construction Group Co., Ltd.