電線用鋼管 (EMT)
產品規範：CNS 2606 C4060 ( JIS G8305 )
DIMENSIONS AND WEIGHTS OF RIGID STEEL CONDIT (無螺紋電線管之尺寸、重量)
| 管之稱呼 | 外徑 |
|---|---|
| E19 | 19.1 mm |
| E25 | 25.4 mm |
| E31 | 31.8 mm |
| E39 | 38.1 mm |
| E51 | 50.8 mm |
| E63 | 63.5 mm |
| E75 | 76.2 mm |
重量許可差：＋不限，-7%
產品規範：CNS 2606 C4060 ( JIS G8305 )
DIMENSIONS AND WEIGHTS OF RIGID STEEL CONDIT (無螺紋電線管之尺寸、重量)
| 管之稱呼 | 外徑 |
|---|---|
| E19 | 19.1 mm |
| E25 | 25.4 mm |
| E31 | 31.8 mm |
| E39 | 38.1 mm |
| E51 | 50.8 mm |
| E63 | 63.5 mm |
| E75 | 76.2 mm |
重量許可差：＋不限，-7%
