Customized Cargo Security Seal Solutions to Protect Global Supply Chains

Full Supply Chain Integrated Cargo Sealing Solution

Shanghai Qize Gangtong Container Seal Co., Ltd delivers one-stop comprehensive supply chain security sealing solutions covering all 6 core seal product lines, supported by our in-house automated production lines since 1994. All products strictly follow ISO/PAS 17712 and C-TPAT standards, covering ocean container shipping, rail freight, highway logistics, customs inspection and cold chain transportation. Leveraging the geographic advantage of Port of Shanghai, we provide customized marking, mass bulk supply and nationwide fast delivery, plus supplementary container parts and port security consumables. Centered on compliant quality, stable lead time and tailor-made services, we safeguard full-lifecycle cargo safety and traceability for shipping carriers, freight forwarders and import & export enterprises across the Yangtze River Delta and all major Chinese ports.

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Full Supply Chain Integrated Cargo Sealing Solution

Special High Security Bar Seal Ultra-High Value Cargo Protection Solution

Our special high security bar seals represent top-tier anti-theft sealing technology for high-value export goods, bonded luxury cargo, military shipments and sensitive customs supervision containers. Built with thick solid steel bars and double anti-tamper mechanisms, they pass strict international high-security certification standards, resisting sawing, prying and picking. Equipped with encrypted unique ID coding, this solution meets the strictest security demands of global customs, premium commodity exporters and international high-security logistics providers.

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Special High Security Bar Seal Ultra-High Value Cargo Protection Solution

Cable Seal Multi-Scenario Flexible Locking Solution

Adjustable-length cable seals (wire seals) deliver flexible sealing for irregular cargos, tank containers, air freight pallets, luggage and valve pipelines. Made of high-strength steel wire with self-locking aluminum heads, they show clear break signs after tampering and support personalized marking. Perfect for mixed cargo shipments, cold chain tank trucks and air logistics, the flexible design adapts to complex locking points while maintaining full supply chain traceability.

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Cable Seal Multi-Scenario Flexible Locking Solution

Bolt Seal Container High-Security Sealing Solution

As core high-security container seals compliant with ISO/PAS 17712 & C-TPAT international maritime standards, our bolt seals are mandatory for full ocean freight containers, cross-border railway transport and bonded cargo. Constructed with reinforced steel bolt and tamper-indicating locking heads, each unit carries an exclusive traceable serial number to meet customs global clearance requirements. This solution is the standard security choice for shipping lines, international trading companies and major port operators worldwide.

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Bolt Seal Container High-Security Sealing Solution

Padlock Seal Warehouse & Container Access Control Solution

Heavy-duty padlock seals combine lock body durability with one-time breakable anti-theft structure, designed for long-term storage yards, container side doors, bank transit boxes and chemical tankers. Requiring cutting tools to remove, they offer superior anti-pry performance compared to regular plastic seals. We supply customizable lengths, printed barcodes and batch serial numbers, catering to logistics parks, port storage depots and high-value goods warehousing to eliminate unauthorized entry risks.

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Padlock Seal Warehouse & Container Access Control Solution

Metal Strip Seal Logistics Monitoring Solution

Our metal strip seals (tin seals) feature high tensile strength and self-locking one-time destruction design, perfectly suited for trucks, storage cabinets, oil drums and container auxiliary locking. With engraved unique identification codes, they enable instant visual tamper evidence during customs inspection and road transit. Widely adopted by freight forwarders and manufacturing factories, this solution provides low-cost, reliable cargo supervision for land transportation, warehouse stock management and bulk commodity logistics.

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