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| ground quartz sand | |||
| finely-ground quartz | |||
| silica flour (добавка к буровому раствору для увеличения его термостабильности) | |||
| silica powder | |||
| quartz flour; silica flour; ground quartz; quartz powder | |||
| кварцевая мука: 1 phrase in 1 subject |
| Oil and gas technology | 1 |