My company to sell each unit of product quality assurance period for plant commissioning or 12 months after the acceptance of the accumulative running 1000 hours, the first to shall prevail, in the warranty period due to quality problems of equipment operation failure, my company provide free replacement of damaged parts and maintenance services. And guarantees the product services, free on-site maintenance and technical guidance, the lifelong provide paid equipment accessories and free technical support and provide guidance to every units sold installation, commissioning and technical service for free information consulting after-sale service department: 0991-38561190 991-3817210, 0991-3814032, 4000991036