Needle Valves dispense very precise deposits. An external stroke control adjustment to fine-tune shot sizes.
外部冲程控针孔阀分配非常精细的沉积物，外部冲程控制调节注入尺寸。
2
The bottom feed, needle feed and alternating foot top feed in connection with the high sewing foot stroke ensure an excellent material feed, which is a condition for an impeccable sewing result.
下送布、针送布以及交替压脚上送布再加上超高的压脚冲程保证了良好的送料，以获得完美的缝纫效果。
3
Conclusion: the therapeutic effect of Pi needle with Chinese herbal medicine on intensified muscular tension after stroke is remarkable.