The problems such as dephosphorization and adhesion of slag to oxygen lance and helmet were settled.

解决了低硅铁水炼钢粘枪、粘烟罩、脱磷困难等问题。

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But perhaps you need more exposure to slag, sewage pumps, adhesion promoters, viscous fluid dosing machines and state-of-the-art grease cartridges.

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