Used medical equipment imports need to apply for what procedures process

What mechanical equipment it is, some of the old equipment can not be imported, imported old mechanical and electrical pre-shipment inspection and quarantine, customs valuation link is considered a technical difficulty. Customs clearance information are: the applicant, the consignee, the consignor's business license pre-shipment and inspection application, the list of old electromechanical products to be imported, the old electromechanical products description, other materials. There are other things you do not understand you can chat with me privately