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Patent for Invention
(Anti-reversal Fluid Loss Additive)
Patent for Invention
(Fluid Loss Additive for Ultra-low Density Well Cement Slurry)
Patent for Invention
(Fluid Loss Additive for Suppressing Early Abnormal Cement Slurry Gelation)
Certificate of Hi-tech Enterprise
Quality Management System Certification Certificate(Chinese Version)
Quality Management System Certification Certificate(English Version)
Environmental Management System Certification Certificate(Chinese Version)
Environmental Management System Certification Certificate(English Version)
Occupational Health Safety Management System Certification Certificate(Chinese Version)
Occupational Health Safety Management System Certification Certificate(English Version)
Software Copyright Registration Certificate
Software Copyright Registration Certificate
