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High-Security Tamper-Evident Seals for Global Trade & Utilities

Trusted manufacturer of plastic seals, meter seals, cable seals, bolt seals, and more. ISO 17712 compliant, durable, and customizable for logistics, energy, postal, and industrial applications.

Security Seals

About CNPioneerSeals

A leading manufacturer and supplier of high-security tamper-evident seals based in Jinan, Shandong Province, China.

Factory

Professional Manufacturer & Supplier

We specialize in the design and production of security seals including plastic seals, meter seals, cable seals, bolt seals, ear tags, metal strap seals, and disposable padlocks.

Our products are widely used in logistics, customs, utilities, postal services, and industrial sectors across the globe. We offer preferential wholesale pricing directly from the factory.

Equipped with advanced manufacturing technology including fully automatic injection molding machines, laser marking systems, and hot stamping equipment, we ensure consistent quality, durability, and customization options.

  • ISO 17712 High-Security Compliance
  • Custom Logo & Numbering Available
  • Exported to Over 50 Countries
  • OEM/ODM Services Supported

Our Products

High-quality, tamper-evident security seals designed for reliability, durability, and global compliance.

PN-MS6003 Meter Seal

PN-MS6003 Meter Seal

High-security tamper-evident electric meter seal with durable construction for utility applications.

Tamper-Evident | Reusable Design
PN-PS2105 Plastic Seal

PN-PS2105 Plastic Seal

High-quality plastic security seal made from PP and PE materials with steel sheet reinforcement.

One-Time Use | Custom Numbering
PN-CS5003 Cable Seal

PN-CS5003 Cable Seal

Container cable wire seal with flexible metal cable for versatile locking applications.

Adjustable Length | Corrosion Resistant
PN-BS1006 Bolt Seal

PN-BS1006 Bolt Seal

High-security container bolt seal with laser-printed numbering for customs compliance.

ISO 17712 Certified | Heavy-Duty
PN-MS6011 Adjustable Meter Seal

PN-MS6011 Adjustable Meter Seal

Adjustable length disposable tamper-evident seal ideal for electric and water meters.

Adjustable | Tamper-Proof Design
PN-PS2304 Anti-Tamper Seal

PN-PS2304 Anti-Tamper Seal

Advanced plastic security seal with enhanced locking mechanism to prevent unauthorized access.

High Security | UV Resistant
PN-PS2302 Plastic Seal with Logo

PN-PS2302 Plastic Seal with Logo

Customizable plastic seals with company logo and sequential numbering for brand identity.

Custom Logo | Numbered Series
PN-CS5103 Numbered Cable Seal

PN-CS5103 Numbered Cable Seal

ABS cable seal with permanent numbering, ideal for truck and container security.

Numbered | Durable ABS Housing
PN-BS1004 High-Security Bolt Seal

PN-BS1004 High-Security Bolt Seal

Best quality high-security bolt container seal with reinforced locking pin.

Heavy-Duty | ISO Compliant
PN-CS5004 Container Cable Lock

PN-CS5004 Container Cable Lock Seal

Cable lock seal designed specifically for securing container doors during transit.

Container Grade | Weatherproof
PN-MS6008 High Security Meter Seal

PN-MS6008 High Security Meter Seal

Premium tamper-proof meter seal with enhanced locking mechanism for critical infrastructure.

High Security | Utility Grade
PN-PS2201 Strip Seal

PN-PS2201 Plastic Strip Seal

Plastic strip seals with custom logo and numbering for traceability and branding.

Customizable | Sequential Numbering

Product Applications

Our security seals are trusted in critical industries worldwide for tamper-evident protection.

Plastic Seals

Made of PP and PE plastic via one-time injection molding, with internal steel sheet reinforcement for added strength. Ideal for postal parcels, document security, and light industrial use.

  • One-time use, tamper-evident
  • Custom numbering and logo
  • Lightweight and cost-effective

Meter Seals

Professional manufacturer of instrument seals for electric, water, and gas meters. Offers high security and durability under outdoor conditions.

  • UV and weather resistant
  • Prevents unauthorized meter access
  • Used by utility companies globally

Cable Seals

Versatile locking solution with variable cable length. Commonly used to secure trucks, railway cars, and containers transporting valuable goods.

  • Flexible metal cable
  • High tensile strength
  • Suitable for large openings

Bolt Seals

Used to secure shipping containers, trucks, and trailers. Must conform to ISO 17712 high-security standards for customs acceptance in international ocean shipping.

  • ISO 17712 compliant
  • High tensile strength bolt
  • Laser-numbered for traceability

Latest News

Stay updated with our latest developments, shipments, and technological upgrades.

Apr. 29, 2021

Container of Plastic Seals Shipped to Singapore

A container of plastic seals was successfully loaded and shipped to Singapore. These seals will be used for securing postal parcels, ensuring tamper-evident delivery.

Read More
Apr. 26, 2021

New Laser Marking & Hot Stamping Machines

We’ve acquired new laser marking and hot stamping machines to enhance customization capabilities. These allow permanent, high-precision marking on various seal materials.

Read More
Apr. 26, 2021

New Fully Automatic Injection Molding Machine

Our new fully automatic injection molding machine improves production efficiency, reduces labor costs, and ensures consistent quality for all plastic seal products.

Read More
50+
Countries Served
10M+
Seals Produced Annually
ISO 17712
High-Security Certified
15+
Years Experience

Frequently Asked Questions

ISO 17712 is an international standard for high-security seals used in customs and international shipping. It defines mechanical strength, tamper resistance, and marking requirements. Our bolt seals meet this standard for global acceptance.
Yes, we offer full customization including logo printing, sequential numbering, color options, and packaging. We use laser marking and hot stamping for permanent, high-quality branding.
Our plastic seals are made from high-quality PP (polypropylene) and PE (polyethylene) via one-time injection molding. Many models include internal steel sheets for added strength and tamper resistance.
You can request a quote directly through our website or contact us via email or WhatsApp. We respond within 24 hours with pricing, MOQ details, and sample availability.
Yes, we provide free samples for evaluation. Just contact us with the product codes you're interested in, and we’ll arrange shipment.

Contact Us

We'd love to hear from you! Get in touch for quotes, samples, or customization inquiries.

Mobile/WhatsApp: +86 158 5311 0753
Address: Room 2116, H-Block, Evergrande Apartment, No.58 North Industrial Road, Jinan City, Shandong Province, China

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