| Material | ABS,Q235A Low-carbon steel |
| Height | 47.5mm |
| Diameter | 7mm |
| Color | Yellow,White,Blue,Green,Red,Orange and so on |
| Printing type | Laser marking or hot stamping |
| Marking contents | Numbers,Letters,mark,bar codes |
| Tensile Strength | >15KN |
| Application | Container,Trailer, tanker,shipping,Rail transport, Logistics freight,Safe, lockers |

Company Profile
Shandong Province Qingyun County Junchuang Lock Industrial Co., Ltd, established in 2008, is a leading manufacturer of one-time lead seals and security solutions in China. With over a decade of industry expertise, we specialize in producing a comprehensive range of products, including plastic seals, bolt seals, cable seals, meter seals, ear tags, cable ties, metal seals, padlock seals, plastic storage bins, bird prevention devices, signboards, and container seals.
Our commitment to excellence is reflected in our ISO9001, ISO28000, and SGS certifications, along with five product patents. Equipped with over 360 specialized production units and advanced testing facilities—including high/low temperature test cabinets, tensile testers, and universal testers—we ensure superior quality and reliability. Operating from a 10,000+ square meter facility, Junchuang integrates R&D, design, production, and sales to deliver innovative, secure, and durable solutions worldwide.

Our Advantages
1.Custom Marking Options – We offer laser marking or hot stamping on all seals, including logos, text, numbers, barcodes, and more.
2.Quality Assurance – All products are original, brand-new, and comply with national, industry, and factory standards.
3.Industry Recognition – We have been invited to participate in international logistics exhibitions across multiple countries.
4.High-Quality Production – Every product is manufactured under strict quality controls to ensure durability and performance.
Product Features
1.High Security – One-time use design with anti-tamper protection, resistant to unauthorized opening.
2.Anti-Rotation Function – Prevents removal through high-speed rotation once locked.
3.Traceability – Custom numbering on the lock body enables quick identification and tracking of goods.
Production Process
Raw Material → Injection Molding → Testing → Printing → Packing → Delivery
Packing Options
Standard: 10 pcs per box, 25 boxes per carton (53cm × 32cm × 14cm)
Custom packaging and palletized bulk shipments available upon request.
Why Choose Us?
1.Specialization – Experts in high-security seals: bolt seals, cable seals, plastic seals, meter seals, metal strap seals, barrier seals, and more.
2.Wide Variety – Diverse types, shapes, and sizes to meet specific application needs.
3.Quality Focus – "Quality First, Service First" philosophy with rigorous production controls.
4.Competitive Pricing – Favorable rates with volume-based discounts.
5.Reliable Delivery – On-time shipment for orders of any size.
6.Custom Solutions – Full OEM/ODM support, including customization based on samples or drawings.
Our Service Commitment
1.24-hour response to all inquiries
2.Sample production and delivery available
3.OEM/ODM services supported
4.100% quality tested before packaging and shipment