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figure 11 after laser cutting sem photographs led chip 4, the high-temperature phosphoric acid wet etching process equipmentin the production must be considered in the design of the project figure 12 for the hong plastic technology (grand plastic technology corporatio gptc) to the fabrication of fully automatic hot phosphoric acid wet etching process equipment, [link widoczny dla zalogowanych] as phosphoric acid wet etching process equipment in the 280 ~ 300 ℃ high temperature, therefore we must take into account heating,?