The picture is for reference only, and the specific product is subject to the actual product!
| CAS | name | Standard value | unit |
|---|---|---|---|
| 7440-38-2 | 砷(As) | ||
| 7439-92-1 | 铅(Pb) |
| CAS | name | Standard value | unit |
|---|---|---|---|
| 7440-38-2 | 砷(As) | ||
| 7439-92-1 | 铅(Pb) |

wechat officialaccount