... NL-557 Automatic Slidable plastic welding and cutting high frequency machine We can make 5KW,8KW,10KW,12KW,15KW, ... cuts off the high frequency, restrain the spark.4)High frequency stabilizer and shielding device minimizes high frequency interference.Manual mould adjusting ... ,ensures long time and high precision movement.8)Whole-set imported superior quality elements from USA, ensure excellence in ...