Non-insulated gauge rod:
Single end gauge rod
Double end gauge rod
Insulated gauge rod:
Insulated single end gauge rod
Insulated double end gauge rod
Application for Guage rod
As an important accessory for railroad tracks, rail gauge tie rod helps to improve the rails` lateral stability and also the ability to keep rail distance. There are some railways that with track circuit, then it should use the insulated rail gauge rod which adopts high insulation resistance material to separate the circuit between two rails apart. Rail gauge may deviated if gauge tie rod is serious lacked, it may cause derailment or even overturned when the train passing by.
Insulated Gauge Rod,Single End Gauge Rod,Double End Gauge Rod,Gauge Tie Bar TAICANG ZHONGBO RAILWAY FASTENING CO., LTD. , https://www.railfastener.com
Common terms and industry profiles of locks
One. Lock Industry Overview
[A] Basic Situation
1. Domestic Market Situation
China is currently the largest producer and consumer of locks globally. The majority of manufacturers are located in Zhejiang, Guangdong, Shanghai, and Shandong. In terms of product categories, Wenzhou in Zhejiang has become a major base for traffic lock production, while Xiaolan in Zhongshan specializes in door locks. Meanwhile, Pujiang in Zhejiang and Yantai in Shandong focus on padlocks. These regions have developed into the largest lock manufacturing hubs in China, forming five key lock production areas: Guangdong, Shandong, Zhejiang, Jiangsu, and Shanghai.
2. International Market Situation
2.1 Major global lock-producing countries include Germany, the United States, Italy, Japan, the UK, and France.
2.2 European and American standards are commonly used worldwide for locks.
2.3 Country-Specific Characteristics:
People in the Middle East tend to purchase larger locks weighing over two pounds; French consumers prefer square-shaped locks, while Germans demand matte surface finishes. Southeast Asians favor colorful and decorative designs, and U.S. financial institutions emphasize strict control over child locks. Japan holds a strong position in the high-end lock market.
[B] Analysis of the Domestic Lock Market
1. Regional Analysis (Zhongshan and Pujiang as examples)
→ Zhongshan Xiaolan
(1) Basic situation: It accounts for 40% of the Chinese lock market and 37% of total national lock exports.
(2) Growth advantage: Benefiting from Zhongshan’s strong industrial base and its strategic location near the strait, it has access to a vast international market.
(3) Development characteristics: With a 30-year history, it emphasizes quality and brand building, adopting an export-oriented model focused on mid-to-high-end products. Notable companies include Guli Door Lock, Huafeng, and others.
(4) Export forms of well-known enterprises vary: Guli focuses on brand cultivation and sells to over 60 countries; Huafeng mainly uses OEM; Gao Li targets high-end European and American markets via OEM; Mingmen specializes in decorative locks.
→ Zhejiang Pujiang
(1) Basic situation: It is the largest padlock production and export base in China. By 2010, there were 815 companies producing padlocks, with an annual output of 1.25 billion units. Over 30% were exported, and more than 70% of large enterprises had self-operated export rights. Products are sold in 125 countries and regions.
(2) Growth advantage: It leveraged reform and opening-up opportunities, focusing on foreign trade development to drive economic growth.
(3) Development characteristics: Over 39 years, padlock production is concentrated in towns like Zhengzhai, Zhongyu, and Puyang, with a wide regional influence.
(4) Well-known brands: Plum, Wu, Jin Lei, White Horse (national brands); Mitsubishi, Guanshan, Yahuan, Zhongxing (provincial brands).
[C] Lock Product Analysis
1. Production volume: Handle and ball locks are mainly produced in Guangdong and Zhejiang; padlocks are concentrated in Zhejiang and Shandong; mortise locks in Jiangsu and Shanghai; ordinary door locks in Shandong and Guangdong.
2. Grades: Mid-to-high-grade locks are mostly spherical door locks. There are three main types:
- High-end mechatronic IC card smart locks, TM card locks, and RF card locks. They use computer technology and precision manufacturing, offering features like hierarchical management, unauthorized key copying prevention, and easy replacement.
- Rolling code remote locks for enhanced security. Each time the password is different, making it nearly impossible to intercept.
- Biometric locks using fingerprints or palm prints. These are secure and convenient, eliminating the need for keys or cards.
3. Types: Modern locks include padlocks, mechanical door locks, traffic locks, car locks, furniture locks, smart locks, and fingerprint locks. Ancient locks include antique and craft-style locks.
[D] Market Development Trends
1. Incorporating cultural and personal taste into design.
2. Emphasis on technological innovation, especially in biometrics and smart locks.
3. Focus on product innovation, patent protection, and enhancing core competitiveness.
4. Increasing regulation and adherence to international standards.
5. Complete solutions for locks and supporting hardware.
6. Environmental protection, energy conservation, and safety trends.
Two. Door Lock GB Standards and Purchase Guide
China's current door lock standards include QB/T2473-2000 (external door locks), QB/T2475-2000 (blade mortise locks), QB/T2474-2000 (ball mortise locks), and QB/T2476-2000 (spherical door locks).
Key factors to consider when purchasing locks:
1. Location and importance of use—choose based on whether it’s for a front door, hallway, room, bathroom, or passage.
2. Environmental conditions—consider humidity, door structure, thickness, and orientation.
3. Aesthetic coordination—match the lock with your interior decor.
4. Family needs—consider elderly, children, or disabled members.
5. Budget—choose appropriate grade based on financial capacity. Always check the manufacturer's reputation and stability.
6. Dealer reputation—avoid counterfeit or low-quality products.
How to choose a lock:
1. Select reputable brands with stable quality and good after-sales service.
2. Check packaging, logo, and product details. Ensure accuracy and avoid exaggerated claims.
3. Inspect appearance quality—look for complete parts, even finish, and no rust or damage.
4. Test functionality and flexibility. Try multiple products and test all keys for two-way locks.
5. Examine key teeth—ensure they are unique and not too deep for easier insertion.
Three. Common Terms Used in Locks
   Definitions of lock types, components, and technical terms such as pin structures, blade structures, magnetic systems, and electronic coding.
1. Lock Structure
1.1 Bullet structure: Cylindrical components that control the lock cylinder.
1.2 Blade structure: Sheet-like parts used to engage or release the lock cylinder.
1.3 Magnetic structure: Made of magnetic material for locking.
1.4 Password structure: Digital code-based system.
1.5 Electronic coding structure: Uses electronic principles for encoding.
2. Key Terms
2.1 Locks: General term for all types of locks.
2.2 Security Level: Reliability of confidentiality performance.
2.3 Firmness: Resistance to external damage.
2.4 Flexibility: Sensitivity during use.
2.5 Durability: Lifespan of the lock.
2.6 Interlocking: Another key can open the lock.
2.7 Tooth: Different shapes on the key.
2.8 Number of Teeth: Total number of unique key teeth.
2.9 Closing Force: Reaction force when the lock closes.
2.10 Safety Device: Prevents foreign objects from opening.
2.11 Key Insertion: Smooth key entry.
2.12 Lock Insurance: Internal and external protection mechanisms.
Four. Top Ten Security Door Lock Core Manufacturers
Anti-theft door lock cores are classified into A-class, B-class, and Super B-class according to the National Machinery Anti-theft Lock Standard. A-class requires at least 15 minutes of destructive opening, B-class at least 30 minutes, and Super B-class over 270 minutes.
1. Karma (China Famous Brand, Guangdong Dongchen Anti-theft Equipment Co., Ltd.)
2. Wang Li (China King Group Co., Ltd.)
3. Gold Point Atom (Guangdong Golden Point Atomic Lock Co., Ltd.)
4. Wanjia (Wanjia Group Co., Ltd.)
5. Baodean (Zhejiang Baodean Security Products Co., Ltd.)
6. Guli (Guli Security Products Co., Ltd.)
7. Xinduo (Xinduo Group Co., Ltd.)
8. Model Di Le (Shenzhen Chang En Industrial Co., Ltd.)
9. Melibao (Zhejiang Meilibao Lock Industry Co., Ltd.)
10. Jusen (Foshan Jusen Hardware Manufacturing Co., Ltd.)
28. How Torch Lock Achieves Brand Breakthrough
→ With Theft Prevention as the Core
Jusen’s new products are designed for safety and peace of mind. Building the brand around anti-theft capabilities is essential for its development.
→ Using Patents as a Breakthrough
Jusen’s invention patents enable secure and theft-resistant solutions. Through patent promotion, it establishes a high-tech, premium image and achieves brand breakthroughs.
→ Gradual Expansion of Product Line
Jusen should focus on its anti-theft core and build a sustainable brand path. While expanding the product line is important, it must be done carefully to ensure success with each launch. Over-expansion may increase costs and marketing expenses unnecessarily. Calculating every step clearly is crucial.