Knitted copper cleaning mesh. Used for the cleaning of breaker plates & feed screws in the plastic extrusion & injection molding industry.
紧凑的铜质清洁网，用于清洁断路器板和塑料挤压中的进给螺杆，注塑成型工业。
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This paper introduces a new type vacuum circuit-breaker by analyzing the current mine flameproof feed switches. The advantages of it as the inner element for the flameproof feed switch are expatiated.