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EA—200型真空充氩焊机研制成功。EA—200型真空充氩焊机适应于焊接直径3～150毫米的圆筒形焊件,如电子管电极等。真空充氩与普通氩弧焊(氩气局
EA-200 vacuum filling argon welding machine was successfully developed. EA-200 vacuum argon filling machine is suitable for welding cylindrical welding parts with diameter of 3 ~ 150mm, such as tube electrode. Argon vacuum argon arc welding and general (Argon Bureau