Ti sertipikotayo .

We have obtained ISO9001 international quality management system certification, API Spec 5L, 5CT, and 5B product certifications from the American Petroleum Institute, ISO14001 international environmental management system certification and GB/T28001 occupational health and safety management system certification, EU boiler and pressure vessel safety certification (PED), and a special equipment manufacturing license (pressure piping), among other system certifications and licenses.