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Trusted Security Seals Manufacturer from China

Wenzhou Guangchang Hardwares Co., Ltd. is a leading manufacturer of high-security bolt seals, cable seals, plastic seals, meter seals, and padlock seals. ISO/PAS 17712:2010 compliant. OEM/ODM services available.

Security Seals Product Showcase

ISO 17712 Certified

High Security Compliance

About Wenzhou Guangchang Hardwares

Wenzhou Guangchang Hardwares Co., Ltd. is a private limited liability company specializing in the production and processing of various seals, blockades, high security seals, wire seals, plastic seals, container seals, large iron seals, and other products. The company's headquarters is located in Wenzhou, Zhejiang Province, China.

We have a complete and scientific quality management system. Our company has been widely recognized by the industry for its integrity, strength, and product quality. With over a decade of experience, we serve clients across logistics, transportation, utilities, and government sectors.

ISO/PAS 17712:2010 Compliant
OEM & ODM Services
Custom Logo & Color
Fast Global Delivery
Factory Production Line Quality Inspection Truck Door Seal Application Container Seal Installation

Our Product Range

A wide range of high-security seals designed for logistics, transportation, utilities, and industrial applications. All products meet international standards and can be customized to your needs.

Bolt Seals for Containers

Bolt Seals for Containers

ISO/PAS 17712:2010 compliant. High-security bolt seals for shipping containers. Available in multiple colors.

  • High tensile strength
  • Sequential numbering
  • Custom logo available
Cable Seals

Cable Seals

Galvanized steel cable seals with adjustable length. Ideal for trucks, containers, and cargo security.

  • Corrosion-resistant
  • Custom lengths available
  • Tamper-evident design
Plastic Seals

Plastic Seals

Adjustable pull-tight plastic seals made from PP+PE material. Reusable or disposable options.

  • Lightweight & durable
  • Custom colors & logos
  • Easy to apply
Meter Seals

Meter Seals

Transparent instrument seals for electricity, water, and gas meters. Prevent unauthorized access.

  • High visibility
  • UV resistant
  • Sequential numbering
Padlock Seals

Padlock Seals

Heavy-duty padlock-style seals with reinforced shackles. Suitable for high-risk environments.

  • Anti-cut design
  • Weatherproof
  • Custom branding
Barrier Seals

Barrier Seals

Large-format seals for gates, barriers, and access points. High visibility and tamper evidence.

  • Extra-long cable
  • Reflective options
  • Bulk packaging

High Security Bolt Seal

Premium-grade bolt seal with reinforced locking mechanism. Meets C-TPAT and ISO 17712 HSL standards.

  • Anti-drill & anti-cut
  • Unique serial numbers
  • Audit trail support

Trailer Seal Cutter Nut Bolts

Heavy-duty trailer seals with cutter nut design. Prevents unauthorized removal and tampering.

  • One-time use
  • High tensile strength
  • Bulk order discounts

Why Choose Guangchang Seals?

We combine quality manufacturing, international compliance, and customer-focused service to deliver reliable security solutions.

ISO 17712 Certified

All bolt and high-security seals comply with ISO/PAS 17712:2010(E) standards.

OEM & ODM Services

Customize material, color, logo, and packaging. Minimum order quantities negotiable.

Fast Global Delivery

Complete packaging and fast dispatch to ensure on-time delivery worldwide.

24/7 Support

Dedicated customer service team ready to assist with inquiries and problem resolution.

Trusted by Global Clients

Over a decade of excellence in security seal manufacturing

300+

Finished Projects

10+

Years of Experience

24+

Awards Winning

100%

Project Progress

Frequently Asked Questions

Are your seals compliant with ISO 17712?

Yes, our bolt seals and high-security seals are fully compliant with ISO/PAS 17712:2010(E) standards, meeting HSL (High Security Level) requirements for international logistics and customs.

Can I customize the color and logo?

Absolutely. We offer full customization for color, logo printing, sequential numbering, and packaging. OEM and ODM services are available upon request.

What is the minimum order quantity?

MOQ varies by product type and customization level. We will advise the exact quantity after discussing your requirements. Sample orders are also available.

How long does delivery take?

Production time is typically 7–15 days depending on order size. Shipping time varies by destination and method (air, sea, or express).

Do you provide samples?

Yes, we offer free samples for evaluation. Please contact us with your shipping address and product interest.

Get in Touch

For inquiries about our products, customization options, or samples, please visit our official website to contact us directly.

Address

No.272 West Wenqu Road, Guoxi Town, Ouhai, Wenzhou, China

Phone

+86-577-86095968

Email

jason928@158.net

Visit Official Website to Contact

We respond to all inquiries within 24 hours. Visit our site for product catalogs, certifications, and direct messaging.

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