419 Please explain the method of field test and flushing (blowing off )of the pipelines.
请说明管线的现场试验和冲洗(吹净)方法。
420 We shall conduct the clean water for the hydrostatic test of the austenitic stainless steel pipe.
我们将为奥氏体不锈钢管的水压试验引进净水。
421 We need a piping material list (list of piping support, bill of welding rod).
我们需要一份配管材料表(管架一览表、焊条明细表)。
422 The welding (heat treatment) of pipes have been carried out with incorporated programming.
管子的焊接(热处理)现已按照编写的程序完成。
423 We can carry out various treatment for the inner surface of pipes, such as sanding, chemical pickling, purging and passivation.
我们可以进行管子内壁的各种处理,诸如:喷砂、化学酸洗、冲洗和钝化。
424 The outer surface of this pipeline will be painted in green (red, yellow, blue, white, black, grey, brown) color.
这条管线的外表面将涂刷绿(红、黄、蓝、白、黑、灰、棕)色。
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