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P4 indoor led display module video wall

    Why choose us? Helilai Technology has a perfect service system, including pre-sale service, in-sale service and after-sale service. To provide high quality service for our customers, we train every salesman with necessary product maintenance knowledge and organized a Technology Supporting Department with a group of excellent and professional engineers. Any problem you can contact us at any time you like. Pre-sale service: 1. Reply enquiries in 24 hours. 2. Market research and forecast for customer. 3. Provide unique and professional solutions based on customer's requirement. 4. Data sheet and samples offer. 5. Other services, such as special packing design, factory visiting and so on.