As long as your business behavior conforms to the relevant provisions of the Special Equipment Safety Law, and you also need a boiler and pressure vessel manufacturing license and a boiler inspection certificate, you can apply for a business license in the Industrial and Commercial Bureau.
The trade certificate refers to the certificate issued by the trade association, and the vocational skill grade certificate refers to the vocational skill grade certificate issued by the employer and social training evaluation institution which are publicly selected and filed by the human resources and social security departments. The training certificate is generally issued by the training institution, which proves that the holder has participated in this training.