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我厂目前生产的DD28型单相电度表,其外壳是由1毫米的低碳钢板冲压而成的,制件的相对高度为0. 32左右,为一次拉仲成形。在
The DD28 single-phase watt-hour meter currently produced by our factory is made of 1 mm low carbon steel sheet, with the relative height of the part being about 0.32, which is a secondary drawing. in