Yanmen, the mighty pass, ranks first among the “Nine Fortresses Under Heaven.” This is a line from Lüshi Chunqiu (The Annals of Lü Buwei). Understated as it is, it still throws into relief just how important Yanmen Pass was as a national military stronghold throughout history.

Yanmen Pass

The Tang dynasty poet Li He likewise captured the pass's heroic grandeur in his poem “The Governor of Yanmen”: “Dark clouds press down upon the city, threatening to crush it; the gleam of armor turns the sun to golden scales. Horn calls fill the sky amid the autumn colors; on the frontier, rouge congeals into the purple of night. Half-furled red banners reach the Yi River; frost lies heavy and the frozen drums sound no more. To repay our lord's favor bestowed on the Golden Terrace, I shall take up my Jade Dragon sword and die for him.” The verses have been passed down to this day.

Today, Zhejiang Longchuan Industry & Trade, with its focus on home safety, is committed to building security doors with its globally unmatched patented “throat-lock” technology — refined through 36 rounds of meticulous polishing, featuring a 13-centimeter hinge and tested through 500,000 impact trials. Guided by the philosophy that to secure the nation one must first secure the family, to secure the family one must first secure the heart, and to secure the heart one must first secure the door, a classic brand was born — Yanmen.

Ten Years of Sharpening the Sword, Forging Glory

Hu Qinxue, founder of the Yanmen brand, says, in the more than ten years since Longchuan Industry & Trade was founded, it has witnessed the myriad facets of life inside the city's concrete and steel, and has caught the wave of the home-decoration industry's most individualistic era. Yanmen security doors fully weave today's popular notions of safety, environmental protection and intelligence into every stage — design, material selection and production — with anti-theft security and lock-cylinder security both reaching the highest grade. It pays closer attention to the fit between the product itself and people's needs, and to the comfort and convenience of use. In this new round of technological innovation in the door industry, Yanmen is neither early nor late — it stands right at the summit of the industry.

Hu Qinxue, founder of the Yanmen brand 

• In 2011, the antique-style security door — combining the Yanmen philosophy with the patented “throat-lock” technology — was launched.

• In 2012, Longchuan's new “Yanmen antique-style security door” was officially put on the market, winning an enthusiastic response and prompting peers to follow suit one after another. Longchuan became the first anti-theft door company specializing in antique craftsmanship.

• In 2014, Yanmen kept probing consumers' real needs and, with the keen eye of a market leader, developed the new “Yanmen quiet security door” — so that coming home late, you will never disturb your family's sleep.

• In 2018, Longchuan launched the all-new “Yanmen Ancient Charm security door”, a comprehensive product upgrade built on the original antique-style door. This year Yanmen has two major moves: first, the new product officially appeared in a CCTV commercial; second, the product has been insured, underwritten by PICC (the People's Insurance Company of China), so that losses to third parties caused by product-related issues will be compensated by the insurer — further strengthening consumers' confidence in choosing Yanmen.

  
  

Yanmen security door — CCTV commercial

Among the new styles Yanmen introduced in 2018 are products for traditional consumers — transfer-printed doors with rosewood-effect finishes, aluminum-inlaid doors, nano genuine-copper lacquer, zinc-iron alloy wood-grain panels — as well as light-luxury, minimalist and grand, high-end products that meet the needs of post-90s consumers. Split handles, embedded fingerprint combination locks, aluminum-framed edging (kalang doors), polyurethane foam-filled doors, two-tone flat doors and dual-color doors — you name it, they have it.

Product Is King, Quality Wins

On the locking hardware, it adopts Zhongheng's premium silver-ring armored anti-theft lock: bolt length 42MM; a unique two-direction, five-bolt mechanical transmission system; reinforced anti-saw lock points; a hardened-steel lock-body protective shell; a reinforced 350*300*2 lock box; and the fifth-generation “Yanmen God” mother-and-child bead lock cylinder.

Its domestic professional quiet technology — “Silence Without End” — features a concealed nickel-plated brushed hinge, 13 centimeters long, connecting the door leaf and frame for smooth, silent opening; and an embedded fireproof, freeze-resistant sealing rubber strip that reduces noise to 36 decibels.

Uniformly high material standards — quality controlled from the very source. Every raw material used in Longchuan doors is checked layer by layer by dedicated quality inspectors and tested strictly in line with national standards, so that substandard products are eliminated right from the source.

Consumption upgrading has become the new normal in our lives. Under such circumstances, even a former king of the phone industry like Nokia struggles to recapture its former glory — all the more reason for home-furnishing companies to size up the times and take the initiative to change. In the door industry, consumption upgrading shows itself in the fact that today's mainstream consumer group has ever more individualized demands for decorating a new home, holding opinions of their own on both aesthetics and functionality. Yanmen security doors, with their high-standard materials, stylish appearance and quiet configuration, silently raise the product's pricing power, dig deep into user needs, and truly drive product iteration and upgrading.

One City, a Window on China's Prosperity; One Door, Companion to a Wonderful Life

Yanmen Ancient Charm security door series — product showcase

This Grade-A retro studded door is named Longyu, and its surface uses a color-blocked stud-inlay technique, an idea drawn from the studded gates of the Yanmen city wall — meaning it guards your home's safety just as a city gate does. This door is a perfect blend of retro, modern and traditional. For hardware it uses a Guangdong-made 304 stainless steel anti-collision straight-bar lock and a zinc-alloy split handle.

(↑ Click the images above to view them in full size)

High-end, customized and smart consumer demand is reshaping the anti-theft security door industry. At this stage, the consumer's role is more powerful than ever, and creating value for users has become the top priority for anti-theft door companies. Only by creating high-value products, content and technology can door companies win consumers' recognition.

Amid the trend of upgrading on the consumer side, Yanmen returns to the true core of corporate competition — manufacturing itself, taking it as its mission to create a safe, reassuring and quiet environment for every household, and bringing a tremendous driving force to the industrial upgrading of the anti-theft door industry.