 |
Terms for subject Oil / petroleum containing self-sealing | all forms | exact matches only | in specified order only
| English | Chinese |
| hydraulic self-sealing packer | 水力自封式封隔器 |
| self sealing preventer | 自封封井器 |
| self sealing valve | 自封阀 |
| self-sealing coupling | 自封联管节 |