GS2700 常見問題&故障排除 GS2700 不是您的產品嗎? 依…排序 更新日期 使用率 3 結果 1. 17/11/2015 How do I install the bobbin wound with thread? (For models equipped with a quick-set bobbin) 2. 27/07/2012 How do I draw up the lower thread by hand? (For models equipped with a quick-set bobbin.) 3. 27/07/2012 How do I wind the bobbin? 中文 準備工作 常見問題&故障排除