Stifled device of qing dynasty that is used for pre -heater on cement manufacture line
Stifled device of qing dynasty that is used for pre -heater on cement manufacture line, it includes motor (1), heat -resisting hose (2), flexible gear axle (3), high pressure coherent pipe (4) and vibrting spear (5), the one end of heat -resisting hose (2) is uncovered, the one end of heat -resistin...
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