Specifications
| load | 500g |
| Applicable standard | GB/T 6739；ISO 15184；ASTM D 3363 |
| Standard pencil | 6B-HB-6B, 13 pcs |
Packing list
After-sales instructions
None
[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/5877/Specification.html , which is only used by users who purchase commodities from the NBCHAO.