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| English | Chinese |
| extra-deep drawing high strength steel | 超深冲高强度钢 |
| extra-hard high-speed steel | 超硬高速钢 (【技】含碳量很高，淬火回火硬度可高达 68 ~ 70HRC, 常含有5% ~ 12%的 Co, 耐热性能很高而韧性低的高速钢。) |
| extra-high leaded brass | 特高铅黄铜 (63Cu,3.5Zn,2.5Pb) |
| extra-high quality steel | 特殊优质钢 |
| extra-high-strength steel wire | 特高强度钢丝 |
| extra-high tensile steel | 超高强度钢 |
| extra-high voltage | 【电】 超高压 |