Cleanup corrosive substance in pipe such as internal water, clean oil, methane hydrate, ferric oxide, carbide dust, carbon bisulfide, hydrosulphurice acide, etc.;

• 清除管线内部积水、轻质油、甲烷水合物、氧化铁、碳化物粉尘、二硫化碳、氢硫酸等腐蚀性物质；