In the eyes of most people, the value of the lock is very common for the school family, a few dollars cheaper, but only a few dozen yuan.
With the rapid development of domestic lock technology, China has become the world's largest producer and consumer of locks. The domestic lock industry has annual sales of more than 40 billion yuan, and its production capacity exceeds 2 billion sets. The annual export volume exceeds 10 billion yuan. In the future, the lock market will continue to grow at a rate of more than 20% per year. With the trend of global economic integration, China's lock industry has begun the road of internationalization and branding industry.
The development of locks is a testimony to history. In ancient times, intelligent humans had learned to wrap personal valuable items in animal skins, tied them with ropes, and put a special knot on the opening. The knot can only be picked up with a tool called "bone call". The knot and the skeleton are the prototype of the lock and the key.
From the padlocks, drawer locks, electrical cabinet locks, bicycle locks of the 1950s, to the anti-theft locks of the 1960s, from the ball locks of the 70s, the locks of the 80s, motorcycle locks, to the ICs and TMs of the 1990s. , RF electronic door locks, and even represent the highest technology of today's smart door locks, password locks, fingerprint locks, building intercom visual systems, the form and function of locks have undergone earth-shaking changes. It is understood that China's annual sales of locks with a sales volume of more than 5 million yuan reached about 1,000, forming a mature industrial cluster of locks in Zhejiang, Guangdong and Shandong. Wenzhou is known as the “China Lock Capitalâ€, while Zhongshan Xiaolan is known as the “Southern Lock Cityâ€.
In recent years, with the rapid development of pillar industries such as residential, automotive, mid-to-high-end office buildings and hotels, as well as the increasing demand for high-precision lock products for defense, public security, and financial systems, high-end locks have become popular. Various lock companies have developed IC card electronic door locks, electronic code locks, encrypted magnetic card door locks, building intercom anti-theft systems, valve locks, etc., as well as fingerprint locks.
Because of the high content of high-end locks, more humanized and personalized, the profit of products is relatively high. Coupled with the speed of replacement of lock products, high-end locks will gradually become the mainstream in locks. According to industry estimates, the market prospects for high-end locks will be considerable.
A chain link Fence is a type of fence made up of interlocking metal wires that form a diamond-shaped pattern. It is commonly used for various purposes, such as securing residential or commercial properties, creating boundaries for sports fields, or enclosing outdoor spaces.
The main components of a chain link fence include the metal posts, top rail, tension wire, and the chain link fabric itself. The posts are typically made of steel and are installed at regular intervals along the fence line. The top rail runs horizontally along the top of the fence, providing additional stability and support.
The chain link fabric consists of woven metal wires that form the diamond-shaped pattern. It is available in different heights and gauges, with smaller gauges being thicker and more durable. The fabric is attached to the posts and top rail using tension bands, which are secured with bolts or screws.
To enhance the security of a chain link fence, additional features can be added, such as Barbed Wire or privacy slats. Barbed wire is typically installed at the top of the fence to deter climbing or trespassing, while privacy slats can be inserted into the chain link fabric to block the view from outside.
Chain link fences are popular due to their affordability, durability, and low maintenance requirements. They provide a secure barrier while still allowing visibility and airflow. Additionally, they can be easily customized with various colors and coatings to match the surrounding environment.
Overall, chain link fences are versatile and widely used for both residential and commercial purposes, providing a cost-effective and practical solution for securing and defining outdoor spaces.
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