Shanghai shuangzhong packaging materials co., ltd. is located in baoshan district of Shanghai, it was founded in 2004 and the total area of factory 11000 square meters, it is a private enterprise.Our factory have two production lines for dunnage bag ,one production line of paper slip sheet , two production lines of plastic slip sheet.。As inchoate manufacture of air bags and the slip sheet ,we has the advanced manufacturing technology and rich experience,also has independent self-supported import and export right. The company's main products : Paper slip sheet, plastic slip sheet, container air bags, paper trays, paper Angle protector and new types of packaging materials such as stretch film ,which are widely applied in storage and transportation ,and possessing the characteristics of convenient, efficient, environmental protection. The company has passed ISO9001:2008 international quality system certification,all products have got the approved by SGS environmental protection ROHS and slip sheet tension test and get customer recognition.All dunnage bags of the company get the American railway transportation association (AAR) quality certification. Now our products have been exported to the United States, Singapore, Japan, New Zealand, Malaysia, Indonesia and many countries . We hope our products and services to move towards the world with your product, sell well at home and abroad!