Qingdao LET Flexitank Co., LTD. is a professional manufacturer of flexitanks, which is specialized in R&D, production, marketing and service, and provides high-quality, professional and diverse products and service.We are the COA membership, all products are designed and produced according the ISO 9001,ISO 9002 standard and also achieve the Kosher, FDA and EC food certificate,our bag have passed COA&AR impact test in USA last month,so the big shipping company such as Maserk can receive our bag to ship