Focus on the “Belt and Road Initiative” infrastructure boom! Metal fish scales from Hebei are highly sought after!

The material and applicable scenarios of the Fish Scale Anchor Pipe

In the context of the accelerated infrastructure construction along the "Belt and Road" routes worldwide and the surging demand for efficient and durable products in the international construction fastener market, the product Fish Scale Anchor Pipe (Fish Scale Pull-Out) of Hebei Duojia Metal Products Co., Ltd., with its multi-material adaptability and strong fastening performance, has become the preferred component for infrastructure projects in Southeast Asia, the Middle East, and other regions. At the same time, the company completed a special product training for sales staff this week, further strengthening employees' understanding of the technical characteristics and application scenarios of the Fish Scale Pull-Out technology, providing more professional technical support to global customers, and demonstrating the competitiveness of Chinese hardware export enterprises in the international market.

As a key product in the field of building fastening, the core advantage of Fish Scale Anchor Pipe lies in its unique "fish-scale-like" texture structure - when installed, it can form a tight bond with concrete, brick, and other substrates, with an uplift resistance more than 20% higher than ordinary anchor bolts, effectively solving the problems of traditional fasteners being prone to loosening and insufficient load-bearing capacity. This product offers two mainstream material options, precisely matching the needs of different construction scenarios: The stainless steel material Fish Scale Pull-Out has excellent corrosion resistance and can be used stably in humid or highly corrosive environments such as seaside docks and chemical plants, for example, in port expansion projects, it successfully achieved the firm connection of large loading equipment with the concrete base, resisting salt erosion from seawater and ensuring the safe operation of the equipment; The carbon steel material offers two versions of colored zinc coating and white coating. The colored zinc coating enhances rust resistance through special processes and is suitable for outdoor advertising boards, street lamp bases, and other outdoor scenarios, in urban road renovation projects, this type of anchor bolt provides reliable support for street lamps, remaining stable even under high-temperature exposure and sand and dust weather; The white coating caters to indoor decoration needs, in office building decoration projects, it is used to fix ceiling trusses and wall decoration components, combining beauty and practical value.

Installation steps and the function of the product

Currently, the international construction industry is developing around the two hotspots of "efficient construction" and "green and low-carbon". The technical characteristics of the fish-scale pull-out technology precisely correspond to the market demand. In terms of construction efficiency, this product can be installed without complex equipment and can be operated by a single person. The specific steps are as follows: The first step is to use an electric drill to drill installation holes with the appropriate diameter and depth on the base material such as concrete and brickwork according to the specifications and models of the fish-scale pull-out. The hole diameter should be 1-2mm smaller than the diameter of the anchor bolt to ensure a tight fit in the future. The second step is to insert the fish-scale pull-out into the drilled hole and use a common hammer to gently tap the top of the anchor bolt to make it fully embedded in the hole. During the process, the anchor bolt must be kept vertical to avoid tilting and affecting the tightening effect. The third step is if it is necessary to fix external components, align the reserved holes of the components with the anchor bolts, insert the matching nuts, and then use a wrench to tighten the nuts clockwise. As the nut is tightened, the "fish-scale" structure at the tail of the anchor bolt will further expand and tightly fit in the base material, forming a stable connection. The entire process improves the construction efficiency by 40% compared to traditional anchor bolt construction, perfectly meeting the demand for "speeding up construction and ensuring progress" in infrastructure projects in Southeast Asia. In the field of environmental protection, Hebei Duojia Metal has optimized the coating process of carbon steel fish-scale pull-outs and adopted low-VOC environmentally friendly coatings. The emission indicators are far lower than the EU RoHS standards, conforming to the global trend of low-carbon development in the construction industry. Recently, it has successfully entered the European green building materials procurement list. In practical applications, the fish-scale pull-out can be found in various construction projects around the world. In large exhibition centers, the huge steel structure roof weighs several thousand tons. To ensure the stability of the roof structure, the construction team used a large number of carbon steel zinc-coated fish-scale pull-outs. These anchor bolts tightly connect the steel beams with the concrete main body, not only bearing the weight of the roof but also resisting the frequent strong wind weather in the area, ensuring the safe use of the exhibition center. In subway construction projects, the complex geological environment underground poses extremely high requirements for the stability of fastening components. Stainless steel fish-scale pull-outs are used to fix ventilation ducts, cable trays, and other facilities inside the tunnel. Their excellent corrosion resistance effectively avoids rusting and loosening caused by the humid underground environment, ensuring the long-term stable operation of the subway system.

Global infrastructure continues to develop with high quality.

"This training has enabled us to have a deeper understanding of the material differences and scene adaptation logic of fish-scale bolts." A salesperson from Hebei Duojia Metal Products Co., Ltd. said. Previously, a customer from the Middle East had inquired about the selection of anchor bolts for the desert's high-temperature environment. After the training, not only could they accurately recommend products made of high-temperature-resistant stainless steel, but they could also provide customized technical solutions such as adjusting the drilling depth and controlling the tightening torque of the nuts. Eventually, an order was signed. It is known that this training by the company covered product technical parameters, installation norms, and differences in international standards, and through case teaching and practical simulation, it ensured that the salespeople could provide precise services to customers in different regions.

With the continuous increase in global infrastructure investment, especially the intensive start of projects in transportation and energy sectors in countries along the "Belt and Road" initiative, the market demand for high-performance fasteners is expected to maintain an annual growth rate of over 15%. The person in charge of Hebei Duojia Metal Products Co., Ltd. said that in the future, they will continue to focus on technological innovation as the core, optimize the production process of fish-scale bolts, establish a regular training mechanism, enhance the professional service capabilities of the team, and further expand the international market, providing higher-quality fastening solutions for global construction projects, and contributing to the high-quality development of international infrastructure.


Post time: Sep-04-2025