double thread造句

• 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。
• Model gk41 - 2 high - speed double four - thread bag sewing closer , which is developed from model gk41 high - speed bag closing machine , adapted two paralleled double thread chain stitch with auto - cut system . it has higher quality closing effects , which is widely used in food processing , chemical factory and so on
  ：本机gk41 - 2为高速双针封包缝纫机，采用针杆挑线和弯针勾线，组成双线链式线迹。主要转动部位采用滚针轴承，并配有自动滴油润滑油路。