| 摘要 |
One is about a set of setting of blade of secondary scraper understanding a squared pipe internal of setting and a squared pipe external of setting. The external pipe receiving a ruler from setting of scraping door-blade. The internal and external squared pipes are fixed one to the other by means of screw and the ruler of setting of the blade clamp is welded to the external pipe of setting. The blade clamp, in turn is screwed to the setting ruler and the door-blade is fixed by screw to the blade clamp. The set is restrained in the position of work by means of limps horizontally bipartite.
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