Communicate with customers to determine the application products, expenses, cycle and scheme of coal mine equipment maintenance qualification, determine the requirements of production equipment, testing equipment and personnel according to the requirements of maintenance qualification products, collect and sort out application materials, prepare product application forms, product drawings, electrical drawings, specifications and other documents, prepare process flow charts and inspection procedures for coal mine product maintenance, communicate with the management documents of coal mine equipment maintenance qualification equipment office for on-site acceptance, and provide on-site guidance, training and explanation.

When applying for the qualification certificate, you should abide by the relevant national laws and regulations and the relevant provisions of the Interim Measures for the Qualification Certification of Coal Mine Equipment Maintenance, bear the relevant responsibilities of violating laws and regulations, do not infringe upon the intellectual property rights of others, bear the relevant responsibilities caused by infringement, submit the application materials truthfully and effectively, provide test samples for the applicant's production, and bear the relevant responsibilities caused by submitting false materials and products.