Shanghai Jingfan Container Seal CO.,LTD is maufacturer and specicalizing in kinds of security seal such as plastic seal,bolt seal,cable seal,padlock seal,bar seal,metal seal.Tensile strength ,shear strength ,bounce strength and bucking strength all reach ISO/PAS17712 standard.we also obtained container seal authentication certification from US customs .We have a reputation for best quality , low price and timely delivery.