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Why TZJ · Certifications
Certifications
ISO 9001, ISO 14001, ISO 45001, and five-star after-sales service certification — earning customer trust through rigorous standards.
Credentials & Systems
Commitments you can verify
ISO 9001 Quality Management System
Beijing OYCC International Certification Center Co., Ltd.
Certificate No.:55123Q00113ROS
Management system conforms to GB/T19001-2016 / ISO 9001:2015, covering sales of electronic equipment, firefighting equipment, training equipment, sports equipment, and electromechanical equipment.
ISO 14001 Environmental Management System
Beijing OYCC International Certification Center Co., Ltd.
Certificate No.:55123E00113ROS
Management system conforms to GB/T24001-2016 / ISO 14001:2015, covering environmental management activities related to sales and premises.
ISO 45001 Occupational Health & Safety Management System
Beijing OYCC International Certification Center Co., Ltd.
Certificate No.:55123S00113ROS
Management system conforms to GB/T45001-2020 / ISO 45001:2018, covering occupational health and safety management activities related to sales and premises.
Five-Star After-Sales Service Certification
Beijing OYCC International Certification Center Co., Ltd.
Certificate No.:55123FW00011ROS
After-sales service capability meets the five-star requirements of GB/T27922-2011 Commodity After-Sales Service Evaluation System.
2018
Founded
13
Product Lines
6
Service Domains
4
Product Families
Value of Certification
What certification means for customers
Quality & Integrity
Rigorous certification processes affirm our commitment to quality, strategic planning, and ethical business practices.
Trusted Partnership
Customers can be confident that TZJ meets strict industry and operational standards.
Mission-Driven
Safety, precision, and innovation guide every project we deliver.
Need credentials or inspection reports?
Contact our team for project-specific certifications and compliance documentation.