The service capability level evaluation standards of special equipment installation service enterprises are divided into level A (level one/national level one/level A), level B (level two/national level two/level B), and level C (level three/national level three). /Grade C) three levels.
T/HEBQS 03-2022 history
2022T/HEBQS 03-2022 Evaluation of Service Ability Levels of Special Equipment Installation Service Enterprises