Tianjin Changying Packaging technology R&D Co., Ltd is located in Tianjin Binhai the growth of private economy demonstration bases. “Credibility-oriented, quality first” is the purpose since the company’s establishment. Focusing on manufacturing and exporting bulk bags and the plastics, the products are lined with International product standard and quality demand. We were awarded the "3A China Quality Credit Enterprise" by Chinese customs. The main products jumbo bags according to GB/T10454-2000 National Standard and has already got accredited by ISO and SGS Quality Management System. The Corp has complete set of testing equipment to cover the process from raw materials to final products in order to guarantee the products’ quality. The most advance equipment promises warp and woof density to 16*16/inch, tensile intensity 2500/2500N/5cm, safety factor over 5:1. Also the capable of withstanding high temperature and high pressure can rivals the abroad. Different specifications and different series of flexible jumbo bags produced in our company can satisfy all kinds of demands. Besides, the Corp also gets products customized as packing bags at any design to fit any kind of product of customer.