Specifications
Packing list
After-sales instructions
Warranty days: 365 days
1.仪器设备非人为造成的产品质量问题，在质保期内厂家提供免费质保服务；
2.易损易耗配件不存在质保期，收到货发现产品质量问题，请在7天内申请退换货，逾期不候；
[Note] For after-sales services outside the Chinese mainland, if the instrument requires repair, the shipping and possible associated taxes shall be borne by the sender. Generation address of the manual: http://en.nbchao.com/p/45694/Specification.html , which is only used by users who purchase commodities from the NBCHAO.