The certificate of enterprise research and development institutions in guangzhou
ISO 3834-2 international welding quality system certificate
The ISO 9001 quality management system certificate
ASME - NB steel seal certificate
ASME -u seal certificate
GC2 special equipment installation maintenance license
Qualification certificate for China petroleum and chemical equipments network
A1, A2 class iii pressure vessel design permits
A1, A2 class iii pressure vessel manufacturing license
Business License
