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Security Seals for Every Industry

Premium safety seal manufacturer with ISO9001, SGS, and PAS 17712 certifications. Trusted by logistics, energy, finance, and industrial sectors worldwide.

Our Security Seals

Over 100 high-security seal products across 7 series, engineered for tamper-evident protection in critical applications.

Bolt Seal

Bolt Seal

High-strength metal bolt seals for containers, trucks, and cargo doors. Ideal for logistics and customs compliance.

  • Tamper-evident design
  • ISO 17712 certified
  • Numbered & barcoded options
Cable Seal

Cable Seal

Flexible steel cable seals with durable plastic heads. Perfect for irregular openings and high-tension sealing.

  • 5mm steel cable
  • UV-resistant housing
  • Custom lengths available
Plastic Seal

Plastic Seal

Lightweight, high-impact plastic seals for bags, boxes, and light-duty applications. Cost-effective and reliable.

  • One-way locking mechanism
  • Multiple color options
  • Custom logo printing
Barrier Seal

Barrier Seal

Wide-body seals for large openings, hatches, and access panels. Provides maximum visibility and security.

  • Extra-wide locking head
  • High tensile strength
  • Ideal for rail & shipping
Padlock Seal

Padlock Seal

Re-usable security padlocks with numbered tags. Combines physical lock with audit trail functionality.

  • Reusable design
  • Numbered steel tags
  • Anti-pick mechanism
Lead Seal

Lead Seal

Traditional lead seals for utility meters, pipelines, and government applications. Economical and tamper-evident.

  • Soft metal deformation
  • Stamped identification
  • Bulk packaging available
Metal Strap Seal

Metal Strap Seal

Heavy-duty stainless steel strap seals for extreme environments. Resistant to cutting and corrosion.

  • 304 Stainless Steel
  • High tensile strength
  • Suitable for marine use
Meter Seal

Meter Seal

Specialized seals for electricity, water, and gas meters. Prevents unauthorized access and tampering.

  • Compact design
  • UV & weather resistant
  • Complies with utility standards
Cable Tie

Security Cable Tie

High-strength nylon cable ties with locking heads. Used for bundling, tagging, and light sealing.

  • 80 lb tensile strength
  • Anti-removal teeth
  • Black or colored options
Custom Seal

Custom Seals

Tailored security solutions with your logo, numbering, barcode, and unique specifications.

  • Full customization
  • MOQ as low as 1,000 pcs
  • Fast prototyping

Trusted Security Seal Producer

Wenzhou Hengyue Seal Co., Ltd. is a leading manufacturer dedicated to researching and producing high-security seals. With over 100 products across 7 series, we serve industries including logistics, banking, energy, and transportation.

Our facility in Shenzhen is equipped with over 500 sets of molds, enabling us to produce a wide variety of security seals in metal, plastic, and composite materials. Every product is designed for tamper evidence and traceability.

100+
Products
500+
Molds
20+
Countries
ISO 9001 Certificate SGS Certificate PAS 17712 Certificate Factory Overview

Customized Security Seals

When standard products don't meet your needs, our engineering team designs and manufactures custom seals tailored to your exact requirements.

Shapes

Custom head designs, cable routing, and locking mechanisms.

Materials

Metal, plastic, nylon, stainless steel, and composite options.

Sizes

Tailored lengths, diameters, and head dimensions.

Colors

Pantone-matched colors and multi-color options.

Logo

Laser engraving, pad printing, or embossing.

Text

Custom warnings, instructions, or identification text.

Serial Number

Unique numbering for traceability and audit trails.

Bar Code

1D or 2D barcodes for digital tracking systems.

Security Seals for Every Industry

Logistics Industry

Container seals, truck door seals, and cargo verification for international shipping and customs compliance.

Hydropower Industry

Meter seals, access panel seals, and pipeline security for water and energy infrastructure.

Financial Industry

Cash bag seals, ATM security, vault access control, and document protection.

Food Industry

Tamper-evident seals for food containers, delivery bags, and cold chain monitoring.

Chemical Industry

Drum seals, valve locks, and hazardous material container security.

Garment Industry

Carton seals, pallet straps, and retail packaging security to prevent theft.

Get in Touch

Contact HYSEAL for product inquiries, custom seal design, or bulk ordering. We respond to all messages within 24 hours.

Contact Information

Mr. Wang
+86-577-86629816
+86-18969729158 (Mobile/WeChat)
+86-18969729158
hy@cnboltseal.com
+86-577-86629817
No.13 Gaoxin South 4th Road, Hi-tech Park, Nanshan District, Shenzhen

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