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What bolts are used in photovoltaic projects
The reason why the photovoltaic industry has attracted global attention is that the energy source of photovoltaic power generation - solar energy - is clean, safe, and renewable. The process of photovoltaic power generation does not pollute the environment or damage the ...Read more -
How many types of expansion screws are there?
1. Basic principle of expansion screw Expansion bolts are a type of fastener consisting of a head and a screw (a cylindrical body with external threads), which need to be matched with a nut to fasten and connect two parts with through holes. This connection form is called bolt connection. If the ...Read more -
Stainless steel screws: the difference between coarse and fine threads
In daily life and industrial production, stainless steel screws play a crucial role as key components for fastening connections. It has a wide variety of types, not only reflected in the diversity of head and groove shapes, but also in the fine differences in thread design, especially the signifi...Read more -
Combination screws VS Regular screws
Compared with ordinary screws, combination screws have multiple advantages, which are mainly reflected in the following aspects: Advantages in structure and design (1) Combination structure: The combination screw is composed of three components: the screw, the spring washer, and the flat washer...Read more -
Performance differences and replacement traps between high-strength bolts of grade 10.9 and grade 12.9
From the most basic mechanical performance indicators, the nominal tensile strength of 10.9 grade high-strength bolts reaches 1000MPa, while the yield strength is calculated as 900MPa through the yield strength ratio (0.9). This means that when subjected to tensile force, the maximum tensile forc...Read more -
DACROMAT: Leading Industry Change with Excellent Performance
DACROMAT， As its English name, it is gradually becoming synonymous with the industrial pursuit of high-quality and environmentally friendly anti-corrosion treatment solutions. We will delve into the unique charm of Dakro craftsmanship and take you on a journey to unders...Read more -
Overview of the fastener industry
Fasteners are the most widely used and widely used mechanical basic components in various sectors of the national economy, known as the "rice of industry". There are many ways to classify fasteners: Fasteners ...Read more -
Government assistance leads to significant growth in exports
Halfway through the age, my original intention is like a rock. The economy of the Yongnian fastener industry has rebounded and continued to flourish. Fastener entrepreneurs adhere to integrity and innovation, take the market as the guide, continuously increase investment...Read more -
Technological innovation forges the ‘small screw’ industry
Fasteners are a characteristic industry in Yongnian District, Handan, and one of the top ten characteristic industries in Hebei Province. They are known as the "rice of industry" and are widely used in manufacturing, construction engineering, and other fields. It is indi...Read more -
Hand in hand, create a better future together
In the wave of global economic integration, China and Russia, as key strategic partners, have continuously strengthened their trade ties, opening up unprecedented business opportunities for enterprises. In recent years, the trade relationship between China and Russia has...Read more -
About Hebei DuoJia
Hebei DuoJia Metal Products Co., Ltd. is located in Yongnian, the distribution center of fastener products in China. After more than a decade of exploration and development, our company is currently a large-scale fastener enterprise that integrates production, sales, tec...Read more -
The 2024 Malaysia International Hardware Exhibition, MBAM ONEWARE
OneWare Malaysia International Hardware Exhibition is the only professional hardware tool trade exhibition in Malaysia. The exhibition has been held in Malaysia for three consecutive years, initiated by the Malaysian Institute of Architects (VNet) and sup...Read more