| ASTM B633 | Zinc on Iron and Steel, Electrodeposited Coatings of | Chemical Processing |
| Supercedes: QQ-Z-325 | Superceded By: None |
| Number | Name | State | Country |
| 90008061 | Barry Avenue Plating Co. Inc. | CA | United States |
| 90061995 | ELECTRODE TECHNOLOGIES INC DBA REID METAL FINISHING | CA | United States |
| 90069110 | METAL CHEM INC | CA | United States |
| 90063017 | Paramount Metal Finishing | NJ | United States |