注胶器底座介绍
introduction of glue injector seat
裂缝表面清理，确定胶座位置。封闭裂缝，粘贴胶座。这就是注胶器专用底座。
clean the joint surface, and define the glue seat. seal the joint,and stick the glue seat. this is the special seat of the glueinjector.
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