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  • What are the benefits of offset hinges?
    In the realm of commercial construction, offset door hinges play a vital role in ensuring the smooth operation and functionality of doors. These specialized hinges offer unique advantages that contribute to improved safety, convenience, and aesthetics in various commercial applications. This article aims to delve into the benefits of offset door hinges, focusing on their significance in education, healthcare, and hotel sectors. ​
  • What Hinges Do You Use on Internal Doors?
    Choosing the right hinges for internal doors is a crucial aspect of interior design and functionality. The type of hinge you select can impact the door's aesthetics, smooth operation, and overall durability. In this article, we will delve into the world of internal door hinges, exploring various typ
  • Which is Better: Pneumatic or Hydraulic Door Closer?
    When it comes to door closers​, the choice between pneumatic and hydraulic door closers is a decision that requires careful consideration. Both options offer unique benefits and features, making it crucial to understand their differences and advantages. In this article, we will explore the world of hydraulic door closers, their functionality, advantages, and compare them to their pneumatic counterparts.
  • What is the Difference Between a Door Knob and a Door Handle?
    When it comes to outfitting your doors with the right hardware, one of the fundamental choices you'll face is whether to use a door knob or a door handle. These seemingly small details play a significant role in your daily life, affecting not only the aesthetics of your home but also its functionali
  • Exploring the Distinction between a Door Closer and an Operator
    In the realm of commercial building management, the safety, security, and convenience of occupants and visitors are paramount concerns. Two essential components used in various applications to achieve these objectives are door closers and door operators. While both play a crucial role in controlling
  • How to Adjust a Standard Door Closer in 6 Steps?
    Door closers are essential components of any commercial or residential building, ensuring that doors close smoothly and securely. Over time, these devices may require adjustments to maintain their functionality. In this comprehensive guide, we will walk you through the six essential steps to adjust
  • What are the different types of door closers?
    When it comes to selecting the right door closer for your building or property, there are several factors to consider. From the type of door closer to the installation and maintenance requirements, each decision plays a crucial role in ensuring that your doors operate smoothly and efficiently. In th
  • Unveiling Excellence: D&D Hardware's Metal Door Hinges for Enhanced Utility and Design
    Introduction:In the realm of architecture and construction, door hinges may seem like a small detail, but their impact is far-reaching. D&D Hardware, a distinguished industry player, has introduced a game-changing solution – metal door hinges. This article delves into the significance of metal door
  • Enhancing Safety and Security with D&D Hardware's Fire Rated Door Hinges
    Introduction:In today's rapidly evolving world, safety and security have become paramount concerns across various sectors, including education, healthcare, hotels, government buildings, apartment complexes, hospitality, and commercial establishments. D&D Hardware, a leading innovator in the field, h
  • Enhancing Door Security and Functionality with Commercial Door Hinges from D&D Hardware
    IntroductionIn today's rapidly evolving world, where security and convenience are paramount, the importance of reliable and robust commercial door hinges cannot be overstated. D&D Hardware, a trusted name in the industry, brings innovative solutions that cater to a wide range of sectors, including E
  • How to Fix a Commercial Door Hinge
    Commercial door hinges play a vital role in ensuring the smooth operation and security of various establishments, including education institutions, healthcare facilities, hotels, government buildings, apartment complexes, and commercial establishments. These hinges, such as UL CE door hinges, fire-r
  • Door Hinges for Enhanced Safety and Functionality in Commercial Applications
    Door hinges play a crucial role in ensuring the smooth operation and security of doors in various commercial settings. In this article, we will explore different types of door hinges, including UL CE door hinges​, fire-rated door hinges, commercial door hinges, wooden door hinges, and metal door hinges. These hinges are specifically designed to meet the safety and functionality requirements of education, healthcare, hotels, government buildings, apartment complexes, and other commercial projects.
  • CE Door Hardware: What You Need to Know to Enhance Security
    Attention all homeowners, business owners and security enthusiasts! Are you curious about how to increase the safety of your property? Look no further than CE door Hardware. In this blog post, we will give you a crash course on everything you need to know about CE door Hardware and how it can enhance your security. From choosing the right locks to understanding access control systems, we've got you covered. So buckle up and get ready for some serious door hardware knowledge that will have burglars running for cover!
  • UL Fire Rated Panic Bar
    As a door hardware company, D&D understands the importance of safety when it comes to protecting your property and loved ones. That is why we are proud to offer UL fire bars as a reliable solution for fire-rated doors. In this article, we will introduce you to UL certification, fire-rated doors, and
  • How to choose a Glass Door Hardware manufacturer
    Maybe most people don't know what Glass Door Hardware is. If you buy a door lock, can you just buy a set? This is not the case. Let's take a look at what Glass Door Hardware includes, which Glass Door Hardware is good, and which will not be "scrapped" because of quality problems.Here is the content
  • Why Glass Door Hardware is the Core of Hardware
    The so-called tempered Glass Door Hardware accessories refer to large and small hardware product accessories, such as Glass Door Hardware floor springs, upper and lower door clips/curved clips, Glass Door Hardware locks, and handle products. Among them, the Glass Door Hardware floor spring is the co
  • How to choose glass door hardware accessories?
    The glass door is an important part to control the access passage of the room. To make the door fully function, the quality problems and functional characteristics of Glass Door Hardware accessories should not be underestimated. According to the different functions of the door, there are also differ
  • What are the types of Glass Door Hardware accessories?
    In house decoration, to ensure good lighting in the interior space and make the space appear larger, many interior doors use glass doors. The quality of the glass door is closely related to its hardware accessories, so what are the main accessories of Glass Door Hardware? How to choose the accessori
  • The purchase of glass door hardware handle
    The Glass Door Hardware handle is a common household item in our lives, but many people may not notice it. However, in-home design and home decoration, every detail reflects the quality of life. Therefore, some people who pay attention to the details and quality of the home will choose the door hand
  • How to Shop for Architectural Door Hardware
    For the safety of family life, people will buy anti-theft doors. There are many materials for security doors, such as copper doors, iron doors, Architectural Door Hardware, etc. Today, we mainly introduce stainless steel security doors. The development of Architectural Door Hardware security doors​ has matured, and everyone should pay more attention when purchasing. Next, I will introduce the purchasing skills of stainless steel in detail for you, I hope it will help you!
  • How to maintain Architectural Door Hardware
    Architectural Door Hardware has a good anti-theft effect, and there is no need to worry about rusting after using it for a long time, so it is very popular with owners. However, no matter what kind of door it is, it will inevitably be corroded by dirt in the process of use, so be sure to pay attention to cleaning and maintenance. Architectural Door Hardware should be cleaned regularly. When scratches, grime, trademark residue, grease contamination, etc. appear, choose a different
  • How to install Architectural Door Hardware?
    To save money, when installing Architectural Door Hardware, many friends would rather choose to learn about it on the Internet, buy the materials, and then install it by themselves, but the troubles come out one after another. So I will share with you three installation methods of Architectural Door Hardware.
  • Cleaning of Architectural Door Hardware
    Most families in the home now like to use Architectural Door Hardware, because it is durable and not easy to rust, which meets people's requirements for safety and beauty. After long-term use of Architectural Door Hardware, the surface will be covered with dust and make it tarnished. So how to clean Architectural Door Hardware every day?
  • Classification of Architectural Door Hardware
    Architectural Door Hardware​ is a door made of stainless steel plate material. Like ordinary doors, the main material is a stainless steel plate, and the filling inside is generally foam or honeycomb paper, which has a solid feeling when knocked out; There is a door flower in the middle. The door flower is sandwiched between the inner and outer two layers of glass, so it can play the role of a security door. Various door flower parts can be made of molds. It is mostly used in residential areas, and is generally used as an entry door to protect the inner door is not damaged. There are many types of Architectural Door Hardware on the market. Architectural Door Hardware can be divided into three types: retractable Architectural Door Hardware, anti-theft Architectural Door Hardware, and rolling shutter Architectural Door Hardware.
  • What kind of Panic Door Hardware is more anti-theft?
    In the current increasingly competitive environment, the current security door manufacturers, due to the lack of competitiveness in technology, can only make some articles on the surface. Make the security door thicker and thicker, with more and more locking points and more and more complex shapes.
  • What are the characteristics of a qualified security door?
    The main function of the anti-theft door is anti-theft, followed by decoration and beautification. When purchasing, focus on checking the anti-theft performance and quality. When purchasing, both appearance, and substance should be taken into consideration. A qualified anti-theft door, the Panic Door Hardware, and the technology it uses are regulated, and if the sales price is very low, it will not meet the anti-theft requirements. Otherwise, buying the door and Panic Door Hardware is a few hundred dollars less, and the loss due to the quality of the door is often more than a few hundred dollars.
  • Types of security doors
    The anti-theft door has both anti-theft and safety performance. Security doors can be made with different Panic Door Hardware, so they can be classified according to different requirements.
  • How to Install a Security Door?
    A security door is a door that can protect the safety of your home. In addition to the quality of Panic Door Hardware, the installation of security doors is also important. So, how can the security door be installed safely?
  • How to choose a security door?
    When purchasing a security door, it can be decided according to personal preference and economic conditions. Specific consumers should pay attention to Panic Door Hardware and the following points when purchasing anti-theft doors.
  • How to fix toilet door lock
    A toilet door lock​ is a great way to ensure privacy and keep unwanted guests out of your bathroom. But what do you do when the lock is broken or damaged? In this blog post, we will show you how to fix a toilet door lock. With a few simple tools and steps, you can easily repair your broken lock and get back to enjoying some peace and privacy in your bathroom.
  • How to open toilet door lock
    Have you ever been in a public restroom and found yourself stuck in the stall because the toilet door lock won’t open? It’s a frustrating experience, to say the least. But did you know that there is a way to open these types of locks without having to call a maintenance person? In this blog post, we will show you how to open a toilet door lock with a simple paperclip. With this knowledge, you can avoid being stranded in a stall next time you encounter this problem.
  • How to pick a fire door lock?
    If you're like most people, you probably don't think much about fire doors. They're just there, and as long as they close in a fire, they've done their job, right? Wrong. Fire doors are actually a crucial part of any building's fire safety system, and if they're not properly maintained, they can put lives at risk. One of the most important things to do in order to maintain a fire door's efficacy is to make sure the lock is working properly. In this blog post, we'll show you how to pick a fire door lock so that you can be sure your building is up to code.
  • What is a fire rated lock?
    When it comes to security, there are a lot of factors to consider. But one that is often overlooked is fire safety. In the event of a fire, you want to make sure that your valuables and loved ones are as safe as possible. That's where fire rated locks come in. In this blog post, we will explore what makes a lock fire rated and how they can help keep your home or business safe in the event of a fire. We will also touch on some of the other benefits of fire rated locks, so that you can make an informed decision about whether or not they are right for you.
  • What is Panic bar and How to choose right model for Fire rated door
    For further information about door hinge or any of our services, click here.Contact us Now:Contact: David JianMob: 0086-139 2903 7292Email:, sales@dndhardware.comJobby ZhangMob: 0086-137 2599 9617Email:
  • How to repair emergency door lock
    Have you ever been locked out of your house before? It’s not a fun experience. If you have an emergency door lock, you may be able to get back in without having to call a locksmith. In this blog post, we will explore how to repair an emergency door lock. We will also discuss when you should call a locksmith instead of trying to fix the problem yourself.
  • How to install emergency door lock
    In this blog post, we will show you how to install an emergency door lock​. This is a quick and easy project that anyone can do in about an hour. We will walk you through the necessary steps, including what tools you will need and how to measure for the correct size.
  • What is the commercial door hardware?
    Commercial Door Hardware is the general term for the various metal and non-metal fittings that are installed on the doors of buildings. It helps to open and close doors and windows. Its surface is usually plated or coated and is robust, durable, flexible, economical, and aesthetically pleasing. Here
  • What are the requirements for Commercial Door Hardware?
    The development of Commercial Door Hardware is closely linked to the evolution of the type of commercial door and the way it opens. This evolution has been motivated by an awareness of the function of doors and a consideration of their convenience. Not only are there now requirements for commercial
  • The importance of Commercial Door Hardware
    Very often, people are often misled by the "matching" of accessories, and over time, the misconception that Commercial Door Hardware is "supporting" or "insignificant" is formed. In fact, in the "room" industry of commercial doors, hardware fittings are the core of commercial doors. The quality of C
  • How to install Commercial Door Hardware?
    Installing Commercial Door Hardware is not difficult, but it is not simple. This is something that needs to be done very carefully. Usually, commercial door salesmen will help with the installation, which not only saves trouble but also has a much smaller possibility of problems. But it's also good
  • How to choose Commercial Door Hardware?
    Hardware is inseparable from our commercial doors. They can be found on every commercial door. Commercial Door Hardware mainly includes seals, half-moon locks, sliding braces, and pulleys. These are all common to us. Now let's take a look at how to choose accessories for Commercial Door Hardware.Her
  • What to look for when installing Hidden Door Hinges?
    The hardest part of invisible doors is addressing the self-closing mechanism, the hinge that closes automatically. The Hidden Door Hinge is one of the hardware parts of the invisible door, which is related to the closing and opening effect of the invisible door. Its installation is also important an
  • Introduction to Hidden Door Hinges
    Do you know what a Door HiHidden Hinge is? Have you ever heard of them? A Hidden Door Hinge is an invisible hinge. They are used to open and close doors and are an indispensable accessory for doors. To give you a clearer understanding of Hidden Door Hinge, I would like to give you a detailed introdu
  • How to replace Hidden Door Hinges?
    Hidden Door Hinges play an important role in our daily lives. In the home, they protect the privacy of family members. Replacing Hidden Door Hinges can be a priceless project for those who enjoy DIY. So how do you replace Hidden Door Hinges? Let me explain to you.This is the list of contents:·Use wo
  • How to install Hidden Door Hinges?
    Hidden Door Hinges play an important role in everyday life and every door depends on them for support. Door hinges provide the first line of defense for family members living inside the house, protecting them from inclement weather. And on the inside of the home, they allow family members to enjoy p
  • What are the types of Hydraulic Door Closer ?
    A Hydraulic Door Closer is a common household appliance, mainly used in our fire doors. Now many home renovations will use. But there are many types of Hydraulic Door Closer, so how do we choose them? Here follow me to see what kinds of door closers!
  • What are the considerations for Hydraulic Door Closer?
    Hydraulic Door Closer are used in a wide range of applications in our lives. It is mainly used in commercial and public buildings, but also domestic applications. Its function is to keep the door closed in the event of a fire, thus preventing the spread of fire. Scientific use is the only way to ensure safety, so what are the precautions for the use of Hydraulic Door Closer ?
  • Introduction to Hydraulic Door Closer
    Modern Hydraulic Door Closer (or door closers for short) began with a patent registered by the Americans in the early twentieth century. They differ from traditional door closers by throttling the fluid in the door closer to achieve a cushioning effect. The core of the Hydraulic Door Closer design concept is to achieve control of the closing process so that the various functional indicators of the closing process can be adjusted according to human needs. So what is the working principle of Hydraulic Door Closer next I'll take a look at it?

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:+86-139 2903 7292   David Jian

: +86-750- 3856396

 : +86-139 2903 7292

:  No.4 Bldg, Street 33, West Gaoxin Rd, High-tech Zone, Jianghai Dist. Jiangmen City, Guangdong, China 
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