The utility model provides the delivery duct for low concentration gas, which can effectively prevent explosion without damaging the duct.
本实用新型提供一种在不损害管道情况下，可有效防止爆炸的低浓度燃气输送管道。
The utility model provides the delivery duct for low concentration gas, which can effectively prevent explosion without damaging the duct.
本实用新型提供一种在不损害管道情况下，可有效防止爆炸的低浓度燃气输送管道。
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