Tap the welding line, blind angle and the bottom when washing pipes of more than 100mm diameter and take care not to damage pipes.
的管道时，要对其焊缝、死角和底部进行敲打，但不得损伤管道。
Stock stirs form to adopt, scrape base , scrape side , do not glue pot , do not have to stir blind angle , stir even;
物料搅拌形式采用刮底、刮边、不粘锅、无搅拌死角、搅拌均匀；
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