| post date: | dec 02,2021 |
| expiry date: | dec 02,2022 |
| detailed description: |
code color chemical composition heat resistance unb-601 black fe-cr 1300 unb-605 mn-pink mn-al 1300 unb-608 orange ti-sb-cr 1250 unb-612 green cr-al 1300 unb-618 blue co-al 1300 |
