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High-Security Seals for Global Industries

ISO-certified tamper-evident solutions trusted by State Grid, China Petroleum, Petrochemical, and customs authorities worldwide.

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About Zhuoli Seal

Shandong Zhuoli Electric Appliance Co., Ltd. is a leading manufacturer of security sealing solutions with over a decade of experience in industrial-grade tamper-proof technology.

Zhuoli Factory

Trusted by National & Global Enterprises

We specialize in producing instrument seals, plastic seals, steel wire seals, and high-security seals that meet international quality standards. Our products are certified by global testing systems and widely used across critical infrastructure sectors.

We proudly collaborate with major state-owned enterprises including the National Grid, China Petroleum, Petrochemical, China Shenhua, and Customs authorities. Our seals are exported to the United States, Germany, Spain, South Africa, and over 50 countries globally.

  • Founded in 2012
  • 150+ Employees
  • 26,000㎡ Manufacturing Area
  • ISO & International Certifications

Our Development History

Company Established

Shandong Zhuo Li Electric Appliance Co., Ltd. was founded, marking the beginning of our journey in industrial sealing solutions.

National Grid Projects

Started undertaking large-scale national infrastructure projects, including contracts with the State Grid Corporation of China.

International Trade Department

Established dedicated international division to expand global distribution and customer support.

Logistics & Supply Chain Fair

Participated in China (Shenzhen) International Logistics and Supply Chain Fair, showcasing container and transport security solutions.

Jinan Zhuoli International Trade Co., Ltd.

Established wholly-owned subsidiary to enhance international operations and streamline export logistics.

Our Product Range

Comprehensive selection of tamper-evident seals designed for energy, logistics, utilities, and industrial applications.

Plastic High Security Seal

Plastic High Security Seal

Tamper-proof design with unique numbering, ideal for container and utility meter sealing.

ISO 17712 Certified
Bolt Security Seals

Bolt Security Seals

Heavy-duty metal bolt seals for containers, trailers, and high-risk access points.

High Strength
Wire Seal Lock

Wire Seal Lock

Aluminum alloy steel wire seals with corrosion-resistant coating for outdoor use.

Weather Resistant
Numbered Plastic Security Seals

Numbered Plastic Security Seals

Sequentially numbered seals for audit trails and inventory control.

Traceable
Container High Security Seal

Container High Security Seal

ISO 17712 compliant container seals for international shipping and logistics.

C-TPAT Compliant
Pull Tight Plastic Seals

Pull Tight Plastic Seals

Quick-installation seals with ratchet locking mechanism for fast closure.

Easy Use
Water Meter Seals

Water Meter Seals

UV-resistant plastic seals for water utility meter tamper prevention.

UV Stable
Animal Ear Tags

Animal Ear Tags

Disposable and reusable ear tags for livestock identification and tracking.

Veterinary Use
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Why Choose Zhuoli Seals

Tamper-Evident Design

Once applied, any attempt to remove or tamper with the seal leaves permanent visible evidence.

ISO 17712 Certified

Our high-security seals meet international standards for mechanical strength and tamper resistance.

Custom Numbering & Printing

Available with sequential numbering, barcodes, logos, and custom text for traceability.

Global Distribution

Exported to over 50 countries including USA, Germany, Spain, South Africa, and Middle East.

Trusted by State Enterprises

Supplied to State Grid, China Petroleum, Petrochemical, China Shenhua, and Customs authorities.

Durable Materials

Engineered with UV-stable plastics, corrosion-resistant metals, and reinforced locking mechanisms.

Our Impact & Reach

2012
Founded
150+
Employees
26,000
㎡ Facility
50+
Countries

Frequently Asked Questions

What are tamper-evident seals used for?

Tamper-evident seals are used to secure containers, utility meters, cargo, and sensitive equipment. Any unauthorized access attempt breaks or visibly alters the seal, providing clear evidence of tampering.

Are your seals ISO 17712 certified?

Yes, our high-security plastic and bolt seals are manufactured to meet ISO 17712 standards for mechanical strength, durability, and tamper resistance, making them suitable for international shipping and C-TPAT compliance.

Can I get custom numbering or printing?

Absolutely. We offer sequential numbering, barcodes, QR codes, company logos, and custom text printing on most of our plastic and cable seals for enhanced traceability and branding.

Which industries use your seals?

Our seals are widely used in energy (electricity, water, gas), logistics, customs, petroleum, petrochemical, transportation, and government sectors. Major clients include State Grid, China Petroleum, and Customs authorities.

Do you offer samples?

Yes, we provide product samples upon request. Please visit our official website to request samples or contact our international trade department directly.

Get in Touch

For inquiries, samples, or bulk orders, please visit our official website to connect with our sales team.

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