Specifications
| Load | 1000g |
| Applicable standard | GB/T 6739 |
| Standard pencil | 6B-6H |
Packing list
Hardness gauge x1
After-sales instructions
Warranty days: 365 days
1. For product quality problems caused by non-human products of instruments and equipment, the manufacturer will provide free warranty services during the warranty period;
2. There is no warranty period for fragile and consumable parts, and if you find product quality problems after receiving the goods, please apply for return and exchange within 7 days, and you will not wait for the overdue ones;
[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/3461/Specification.html , which is only used by users who purchase commodities from the NBCHAO.