Ningjin Chengheng Trading Co., Ltd. ,located in the Northern China plastic processing center,Ningjin Industrial Zone.40 minutes to the capital Beijing by high-speed rail, covering 1446 square meters.. We are specialized in plastic film blowing machines,bag making machines,rotogravure printing machines，dividing and cutting machines and plastic recycling machines as an overseas trading company And the products are exported to many countries like Middle East,Southeast Asia,Africa,etc.years of experience is enough to confidence in our products. However for customer,it is far，far from enough,product service is also a sign of integrity,we insist that each machine chooses optimal design according to the bag types,material and the average width of bags,high efficiency operation. Above all the closest service: 1. One year free after-sales service, no charge for changing parts in one year by TNT Express and mechanical parts lifetime warranty. 2. We can also offer the replacement parts that the relating faulty machines you had before even though you don’t purchase ours. 3. Free installation and ajustment.(for consumers purchase more than $100000 only)