Pre-sales:
1. Real-time online reception and answer customers questions with products.
2. Note customer requirements according to order requirements.
3. Product samples can be sent to customers if required.
On sale:
1. Express problem feedback, timely leave messages to customers.
2. Continuously improve products according to customer needs, and take photos of finished products after completion.
After sale:
1. If there are omissions or product problems, timely treatment.
2. Good service for a series of follow-up invoicing problems.