Changzhou Kaitian Mechanical Manufacture co.,ltd is professional manufacturing PP woven bag making machines.Our company pays a lot of attention in promoting the technology,such as winders.We have high speed winders,middle speed winders and low speed winders;we offer magnetic and inverter winders.Now one of the most important advantage of our winders is that our profucts could save 50% power,which means you could save a lot in the cost of electricity.Besides,if you want to know more information about our products,please feel free to contact Sally.Thank you for your time.