... 气燃式方型炉 gas combustion box type furnace 气砂锚 gas and sand anchor 气升式移动床催化裂化装置 air-lift thermofor catalytic cracking unit ...
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The utility model is suitable for various oil and gas Wells and water Wells, and can directly do sand anchor operation under pumps.
本实用新型适用于各种油气井和水井，可直接做泵下砂锚。
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