Welding head maintenance block

The invention relates to a soldering iron tip maintenance block which is composed of the compositions according to the weight percentage of 0 to 50 percent of organic dibasic acid, 0 to 20 percent of alumina powder or sic powders, 0 to 20 percent of borax, 0 to 5 percent of glycol, 0 to 5 percent of...

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1. Verfasser: ZHU YUEEN
Format: Patent
Sprache:chi ; eng
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