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C10 Slide Gate Mechanism for Small Ladle in Steel Plant Ladle Refractory Upper Nozzle and Collector Nozzle, Find Details and Price about Refractory Slide Gate Plate from C10 Slide Gate Mechanism for Small Ladle in Steel Plant Ladle Refractory Upper Nozzle and Collector Nozzle - Qingdao Longtaichangsheng International Trade Co., Ltd