A Our company will provide 7*24 hours of online service in the after-sales service. If there is any problem, we will arrange a specially assigned person to deal with it as soon as possible; in the value-added service, we will provide free sample delivery and door-to-door delivery to assist customers in testing samples and provide free heat plan consultation; VIP service (top 10 annual sales, timely payment, monthly payment of more than 35.000 USD.) Engineers will be provided to assist in development, provide technical training services, proofing priority, priority delivery, priority order, special personnel docking, new products and new Technology is recommended first.