double thread meaning in English
双螺纹
双头螺丝
双头螺纹
双纹螺纹
双线螺纹
Examples
- Food industry fittings ; double threaded couplings
食品业用管配件.双螺纹联接器 - Stitch type double thread chain stitch
双线链式 - Double thread chain stitch
双线链式 - Dbl double thread
双线双针 - Using double thread volume hook for model l819 - x2 , it increases periodicity by reducuing the time for refilling new thread
X2机型采用两倍梭头，减少更换梭线时间，提高生产效率。