用可编程序控制器控制钢管壁面喷砂除锈作业线，提高了自动化程度，操作方便，运行可靠。
The application of programmable controller enhances automatic grade of sand jet line of production with convenient operation and reliable performance.
用可编程序控制器控制钢管壁面喷砂除锈作业线，提高了自动化程度，操作方便，运行可靠。
The application of programmable controller enhances automatic grade of sand jet line of production with convenient operation and reliable performance.
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