Qize Gangtong Container Seal

Shanghai Qize Gangtong Container Seal Co., Ltd. is located in Jianbang, Malu Town, Jiading District, Shanghai. We are a professional manufacturer and service provider specializing in the R&D, production and sales of container security seals, logistics anti-counterfeit locks and port bolt seals, with years of in-depth experience serving ports, shipping lines, international freight forwarders and cross-border logistics sectors. Our founder has been engaged in logistics security as early as 1994. Upholding the spirit of continuous innovation, we consistently pursue premium product quality and deliver top-tier services, striving to contribute to the smart logistics and sustainable development of China.

Our full portfolio of security sealing products includes high-security bolt seals, cable seals, plastic anti-tamper seals, metal strip seals, electronic lead seals, customs-exclusive security marks and disposable container locks. All products are manufactured in strict compliance with international maritime security standards ISO/PAS 17712 and C-TPAT. Our seals are widely applicable to container ocean freight, railway transport, highway logistics, customs inspection, warehouse cargo escort and other scenarios, featuring anti-tampering, easy identification and full traceability.

1994

Rooted in Logistics Security

Years of Industry Experience

Integrated Service Capabilities

Export Markets Worldwide

Data updated in 2026

Honor

Certified Factory Production

We engage in the development of security products, logistics equipment, cold-chain logistics supplies, electronic products as well as relevant software and hardware. Committed to independent R&D and manufacturing of automated production machinery, we are now equipped with a complete set of fully automatic production lines.

Leveraging the geographic advantages of the Port of Shanghai, our service network covers the Yangtze River Delta and major ports across China, catering to shipping carriers, large logistics operators and import & export trading enterprises. We deliver one-stop solutions including customized laser marking on seals, bulk supply and expedited delivery, alongside supplementary sales of container spare parts and port security consumables.

Let's collaborate

Rich product portfolio covering all container seal types, nationwide fast shipment and dedicated custom solutions for cross-border supply chain security.

Centered on compliant quality, consistent supply and tailor-made services, our company devotes itself to supplying safe and reliable cargo sealing solutions for global logistics supply chains, ensuring cargo safety and full lifecycle traceability throughout cross-border shipments. We stand as a trusted partner in supply chain security sealing management.

LET'S TALK

Fill out the form below and we will be in touch as soon as possible.