After two hours of communication with our engineers, we found a product that could fully meet the needs of our customers, and the price we offered was very advantageous. After the customer used them, they all responded very well and signed a cooperation framework agreement after three months of use, with a deposit paid in advance for stock. After we received the order every month, we delivered to the customer within three days. The cooperation has been very pleasant, and the recent order has reached 2000 pcs per month, and is still expanding.