- Result
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                    2018/02/22 non-contact melting or suspended melting or levitation induction melting  non-contact melting or suspended melting or levitation induction melting non-contact melting or suspended melting or levitation induction melting
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                    2017/08/06 suspended (levitation) induction heating suspended induction heating_2suspended induction heating_1 
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                    2017/08/06  levitation induction heating levitation induction heating
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                    2017/08/06  levitation induction melting levitation induction melting
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                    2017/08/04 induction coils for suspending heating or levitation heating  induction coils for suspending heating or levitation heating induction coils for suspending heating or levitation heating

