prepare the required materials.

application form for qualification certificate of range hood cleaning:

1. application form for rating of cleaning service organization.

2. Qualification certificate of legal representative.

3. Original (inspection) and photocopy of the business license.

4. The original (inspection) and copy of the property right certificate or lease contract of the office and workplace.

5. List of managers and technicians and certificates of academic qualifications or titles.

6. Copy of training certificate for oil fume pipeline cleaning personnel (more than 11 people). (you can get it by studying in relevant institutions).

7. Quality management documents, operation standards and quality acceptance system for oil fume pipeline cleaning.

8. List of special products and equipment for cleaning (including model, specification, technical indicators, purchase time, manufacturer, operation status, etc.).

9. Last year's financial audit report or credit certificate.

certification materials for cleaning projects within 1 or 3 years.

11. The oil fume pipeline cleaning project should have special insurance (more than 5 people).

Instructions for operators to register for oil fume pipeline cleaning:

1. Provide electronic one-inch photos.

2. Copy of ID card, or provide information in electronic version.

3. A declaration form.

4. You can get the certificate after passing the training and examination.