All carbon arc gouged surface areas shall be ground to clean brightmetal prior to subsequent welding.
开始后续焊接前，所有碳弧气刨面区域应接地至洁净明亮的金属。
2
Use sand cloth or steel wire brush to clean both tube and cup to a brightmetal. Steel wool is not recommended.
采用砂布或钢丝刷清除管道和端口，使其显露出光洁的金属色。不建议采用钢丝棉。
3
Use pedal to move a gauge tap , handle brightmetal chopping the head the brightmetal being in progress copying, operation is convenient and rapid , stability , safety are reliable.