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| MRC | Name | Details |
|---|---|---|
| AWMG | EXTERNAL THREAD SIZE | 1-1/4-11-1/2 |
| CGMD | EXTERNAL SC | NPT |
| MATL | MATERIAL | "IRON, MALLEABLE" |
| STYL | STYLE DESIGNATOR | N1 OUTSIDE HEXAGON OR OCTAGON |
| SURF | SURFACE TREATMENT | ZINC |