Shanghai Asialock Security Seals Co., Ltd is specialized in plastic seal, bolt seal, cable seal, meter seal, metal strap seal and other security seals. We have 18 years security seals experience, and our factory has 10 years production experience. We have serviced for more than 600 clients and sold security seals for more have produce and sold out more than 500 million security seals. Our factory has ISO9001:2015 certification,all of the bolt seal has passed ISO17712:2013 certification and C-TPAT compliant. We insist use raw material, 100% inspection and support after-sale service.