特點：
    縫焊機主要用於金屬沖壓件相互重疊的邊連接成型焊接。
    FN型屬於交流式縫焊機，主要用於焊接無鍍層的低碳鋼件及不鏽鋼。
    ZFN型屬於次級整流的直流縫焊機，因焊機的功率因數得到較好的改善和提高，在焊接同等材料時，與交流式比較所需輸入容量小，特別是對大功率的焊機可實現三相輸入，再經整流輸出，可大大改善線網的供電平衡，是節能產品之一。除可焊一般低碳鋼外，還可焊鋁、鈦和鍍層鋼板等。

Features:
    Currently,sewing welders are mainly applied in molding welding overlapped edges of metal pressing facilities.
    The alternating current sewing welder-FN sewing welder is mainly applied in welding low carbonsteel utilities and stanless steel without plating.
    While the direct current sewing welder-ZFN sewing welder is a kind of secondary commute one. Comparing with alternating current sawing welder,ZFN needs smaller capacity due to its great improvement of power factor,which makes it energysaving product. It can be applied in wellding aluminium, titanium and plating steel besides the standard low carbonsteel