1. Dongshun pre-sales engineering personnel provide solutions to potential customers and provide evaluation reports on relevant solutions based on customer information (including product introduction, corresponding solutions for customers, production materials related to products on equipment, and investment return analysis, etc.).

2. Dongshun service personnel explain the theoretical knowledge, working principles, electrical principles, and structures involved in the equipment to potential customers; Provide parameters of machine technology, process flow, actual operation of equipment, and daily maintenance and upkeep methods.