WENZHOU GCSEAL is an ISO 9001:2008 certified co***ny and the products are designed and manufactured in accordance with the ISO/PAS 17712 standard and CE requirements, many of our bolt seals and cable seals are certified as ˇ°HIGH SECURITY SEALSˇ± by latest version of ISO/PAS 17712:2013 DAYTON T. BROWN in the US...