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lt requires to provide 80℃-100℃ hot water through the steam or electric heating; it supplies hot water to the heating layer of the water-bath glue-melting tank or other equipments for circulated use; its main part is refined with stainless steel; and its provided with such units as a liquid level meter，a thermometer and a safety valve，which is a supportive device for glue melting, proportioning and cleaning.