High Security 28cm Plastic Seals with Label Tag Cable Lock Metal Insert Plastic Security Seal Mold Manufacture

Plastic security seals are tamper-evident security devices made primarily from high-strength engineering plastics, specifically designed to effectively prevent counterfeiting, theft, unauthorized access, leakage, and tampering risks in various industrial environments. They are widely used across multiple industries and application scenarios, playing a critical role in ensuring the integrity, safety, and traceability of goods during transportation, storage, handling, and operational use. The plastic seal is a single-use self-locking security seal that is designed for one-time application; once locked, it cannot be reopened without visible damage, providing reliable and clear tamper-evidence.

These plastic seals feature a wide range of color options and flexible customization capabilities, allowing customers to select different colors according to branding or operational requirements. They support logo printing, serial number marking, barcode printing, and other identification functions to enhance product traceability and anti-counterfeiting management. The size specifications are highly diverse and adaptable to different industrial and packaging needs. In addition, the plastic seals are designed with adjustable length structures and reinforced locking mechanisms, ensuring stable performance and strong anti-tampering, anti-theft, and anti-counterfeit protection in complex usage environments.

They are mainly applied in logistics transportation, freight security, and supply chain management systems, as well as in medical equipment sealing, pharmaceutical packaging protection, and warehouse storage control. They are also widely used in industrial packaging fields and special sealing applications such as video equipment protection, beverage product sealing security, and quality inspection processes. In addition, they are commonly used as plastic labeling and identification solutions for bags, garments, and consumer goods packaging, improving tracking efficiency and brand protection across multiple industries.

Plastic seals are widely applied across multiple industries to ensure product integrity, tamper evidence, and operational safety, making them an essential component in modern supply chain security systems. They are commonly used in sectors such as food processing, pharmaceuticals, energy, transportation, logistics, and high-precision scientific environments, where safety and traceability are critical.

Typical applications include securing truck doors, trailer locking systems, totes, valves, airline catering carts, coin collection bags, inner drum liners, storage sacks, and any type of container equipped with a hasp or loop-based locking mechanism. Their versatility makes them suitable for both industrial and commercial sealing requirements.

In logistics and freight transportation, plastic seals are widely used to secure containers, tanker trucks, cargo units, and courier packaging bags, effectively preventing unauthorized access, theft, or tampering during transit. Thanks to their single-use breakaway design and unique serial numbering system, any attempt to open the seal will leave visible evidence, ensuring complete traceability and cargo protection throughout the supply chain.

In courier services and e-commerce logistics, single-use anti-counterfeiting plastic seals (also referred to as security tags) are commonly adopted. These seals can be customized with unique surface textures, serial numbers, or printed company logos, helping businesses enhance brand visibility while also reinforcing customer trust and product authenticity.

In the utilities and metering industry, plastic padlock seals such as AC&M Type 7001 are widely used for electric meters, water meters, and gas meters. These seals provide a secure, disposable locking solution with clear tamper indication, making them ideal for smart metering systems that require long-term, low-maintenance protection and infrequent physical inspections.

1. Low cost with durable material & single-use irreversible design
Our security seals are designed with a cost-effective structure while maintaining high durability and reliability. The single-use irreversible locking mechanism ensures that once the seal is applied, it cannot be reused or restored, effectively preventing unauthorized access and tampering during transportation, storage, and distribution processes.

2. High-strength materials: stable tensile performance
Manufactured from high-quality PP or engineering-grade plastics, our seals provide excellent and stable tensile strength. These materials ensure strong resistance to pulling force, impact, and deformation, making them suitable for demanding logistics, industrial packaging, and cargo security applications.

3. Factory direct supply with competitive pricing
We provide factory-direct pricing advantages with no middleman cost, ensuring competitive market value for global buyers. Custom sample development is available according to customer requirements, and all production processes are strictly controlled under quality management systems to ensure consistent product reliability.

4. Global export experience with flexible shipping solutions
With extensive international export experience and complete export qualifications, we support multiple transportation solutions including sea freight, air freight, and land transportation. This ensures flexible delivery options for customers across different regions and project requirements.

5. Anti-counterfeiting and traceability technologies
Our security seals support advanced anti-counterfeiting features such as laser engraving, unique serial numbering, and tamper-evident markings. Selected models can also integrate RFID technology, enabling digital tracking, real-time monitoring, and improved supply chain visibility for logistics and high-value goods.

6. User-friendly and efficient operation design
Designed for fast and practical usage, our seals can be applied easily with one-hand operation and require no additional tools. This makes them ideal for high-frequency sealing environments such as warehouses, distribution centers, and field operations where speed and efficiency are essential.

7. Material advantages for different applications
We offer multiple material options to meet various industrial needs. HDPE provides durability, chemical resistance, and cost efficiency for general sealing applications. PP material is highly resistant to chemical corrosion, making it suitable for pharmaceuticals and sensitive goods. Elastomer-blended plastics combine flexibility and resilience, offering a balanced performance between rigidity and elasticity.

8. Lightweight structure with easy installation
Compared with traditional metal seals, plastic security seals are significantly lighter, helping reduce transportation weight and overall system load. Their ergonomic design allows quick, tool-free installation, which greatly improves assembly efficiency and reduces labor costs in large-scale operations such as logistics and manufacturing.

9. Tamper-evident security and full traceability
Most of our plastic security seals are designed for single-use applications with clear tamper-evident locking mechanisms. Once broken, they cannot be resealed without visible damage. Additional features such as laser-printed serial numbers, barcodes, color coding, and holographic elements ensure complete traceability and compliance for logistics, elections, banking, and pharmaceutical industries.

10. Customizable and adjustable sealing design
Our pull-tight plastic seals feature adjustable locking lengths, allowing them to fit a wide range of container sizes and packaging types. This flexibility makes them suitable for irregular cargo, utility meters, voting systems, and industrial equipment, significantly improving usability across multiple application scenarios.

1. Q：Who are we?
A: We are based in Shandong, China, start from 2012, sell to Mid East, South Asia, Northern Europe,Africa, North America, Western Europe. There are total about 200-300 people in our office.

2. Q：How can we guarantee quality?
A: Always a pre-printing sample before mass production;
Always final Inspection before shipment;

3. Q: what can you buy from us?
A: bolt seal,cable seal,plastic seal,meter seal,metal strap seal, etc.

4. Q: Why should you buy from us not from other suppliers？
A: 12 years experiences, 300 sets of models with different style , meet your different demands with fast delivery. All our material is environmental, we won many honors from government. Our goods are popular in 300 countries.

5. Q: Do you accept custom orders?
A: Yes. We provide comprehensive OEM & ODM customization services, including:
LOGO printing and unique serial numbering
Customized sizes, colors, materials, and packaging

6.Q: What certifications do you have?
A: We maintain a complete and internationally recognized certification system, including:
ISO 9001 – Quality Management System
ISO 14001 – Environmental Management System
ISO 45001 – Occupational Health & Safety Management System
ISO 17712 – High-Security Seal Certification
Third-party test reports from SGS and other authorized institutions