What documents do hotels need to install commercial range hoods?

Need to apply for the first-class enterprise qualification certificate of range hood installation, cleaning and maintenance service. Qualification certificate is the qualification certificate for an enterprise to carry out production and business activities. An enterprise can engage in production and business activities within the scope permitted by its level only after applying for examination and obtaining qualification cross-examination. Enterprise qualification certificate actually refers to the certificate that an enterprise has the ability to complete a project. Qualification certificates include enterprise qualification certificate, engineering design qualification certificate, interior decoration qualification certificate, building qualification certificate, etc. Taking construction enterprises as an example, according to the Regulations on Qualification Management of Construction Enterprises and State Decree No.87, construction enterprises should apply according to their registered capital, net assets, technical personnel, technical equipment and completed construction achievements. Only after passing the examination can they engage in construction activities within the scope permitted by their grades.