729 dust collector bag in the production process to achieve compliance of the crop size, the line silk suture line and the material of the bag, the suture can not have open lines, the emergence of the problem of disconnection, the mouth and the bottom of the bag to bunk plus seam. Serious direct impact on the quality of the bags is the effect of the dust collector, good quality fabric and long service life, potentially reducing the artificial maintenance time, increase efficiency, and customer satisfaction, we are assured that.