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The Musical-candle invented Since 1984; The Flashing-pin
invented Since 1990; The Gen. I-Auto. Dipping Machine
invented Since 1989; The Gen. III The Auto. Dipping Machine:
Controlling by "Micro-computer". the principle of dipping as
same as Demo. dipping by hands compietely. Any one could
operate the machine easily; Saving labor s charge.