How to file an international patent application and what materials need to be submitted?

Documents to be signed or provided when applying for a foreign patent: power of attorney and power of attorney, including the following information: the name and address of the applicant (in Chinese and English); Name and address of the inventor (in Chinese and English); Category of patent application; Applicant country; The original application date, application number and patent application category; Whether priority is required; Whether to submit a request for substantive examination at the same time as the application; The request, acceptance notice and original patent application documents of the original patent application in China (including specifications, claims, drawings and abstracts); Existing technical data (patent documents, scientific and technological documents closely related to the invention known by the applicant, etc.). )