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碳素鋼鍛造,硬度高,扭矩大,堅(jiān)固耐用。
中間焊接工藝+ 護(hù)片鉚接,牢固不易變形。
4 個(gè)不同規(guī)格的套筒頭,一扳四用。
套筒頭規(guī)格:17mm、19mm、21mm、23mm