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  • Telephone Wiring Duct
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Applications

Telephone Wiring Duct is commonly used in office buildings, communication rooms, telephone systems, network wiring projects, indoor cable installations, and commercial facilities. It is suitable for managing telephone lines, signal cables, and other small electrical wires.

Core Features

1. Reliable PVC Material
Made from white PVC material, providing good electrical insulation performance and stable heat resistance up to 85℃ for long-term cable protection.

2. Spacious Internal Design
Features an enlarged internal space supporting cable bundles up to 30 wires, suitable for organizing telephone lines and communication cables in different installations.

3. Strong Adhesive Tape Base
Equipped with a strong adhesive backing with bonding strength up to 8 N/cm², enabling quick installation on smooth surfaces without additional fixing accessories.

Customization Service

OEM and ODM services are available, including custom colors, sizes, private labeling, and packaging. Samples can be provided for quality evaluation, and reliable after-sales support is offered throughout the cooperation.

Certified Quality

Our products comply with international quality and safety standards and are certified with UL Listed, TÜV, CE, UKCA, ISO 9001, RoHS, REACH, and amfori BSCI, ensuring dependable performance for global markets.

Minimum Order Quantity

The minimum order quantity is 1,000 packs per size, making it suitable for wholesale distribution, retail programs, and OEM projects.

Lead Time

Telephone Wiring Duct lead time depends on the order quantity. We provide efficient production scheduling and on-time delivery to meet your purchasing requirements.

FAQ
Q1: What cables can Telephone Wiring Duct organize?
A: Telephone Wiring Duct is suitable for telephone lines, signal cables, and low-voltage wires, while also working as a Telephone Cable Channel for neat cable routing.

Q2: Can this duct be used for network installations?
A: Yes, it can be used as a Network Cable Duct for organizing small communication cables in offices and commercial wiring projects.

Q3: How does the duct improve cable maintenance?
A: The organized structure allows easier cable checking, replacement, and upgrades in communication systems.

Q4: Is this product suitable for communication equipment rooms?
A: Yes, the Communication Raceway design helps manage cables in telephone rooms, network cabinets, and indoor facilities.

Q5: Can the wiring duct be customized for different projects?
A: Yes, customization options include sizes, colors, packaging, and private labeling to meet different project requirements.

NINGBO SANZHENG PLASTIC CO., LTD.
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About NBSZS

2011 YEARS
It is a factory specializing in the production of various cable ties, cable connectors, spiral wrapping tapes, PVC, silicone, glass fiber protective sleeves, purple tubes, expansion tubes, conduits, R-type wire clamps, fixing brackets, wire connectors, and various plastic electrical equipment cold-press terminals under the "NBSZS" brand. Sanzhi is a comprehensive enterprise integrating R&D, manufacturing, and sales, focusing on the research and production of flat-clip-type nylon cable ties.
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System Certification
We have ISO9001 and CE, REACH, ROSH, and SGS certificates, and we can customize high-temperature, low-temperature, and UV-resistant products. Our factory have our own laboratory. We have a test machine, a tensile tester, a moisture detector, and a machine for testing high and low temperatures, which can ensure our product's quality.
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    Banks of injection molding machines roared as smart production lines operated at full capacity on May 15th, inside the production workshop of Ningbo Sanzheng Plastic Co., Ltd. Robotic arms darted precisely between molding stations, grasping, trimming, inspecting, and packaging nylon cable ties in one seamless operation. Finished products flowed like a stream into collection bins. Workers then transported pallets laden with standardized parts to the warehouse area. Currently, employees are working diligently to fulfill a 15-ton nylon cable tie order for Indonesia, ensuring on-time delivery this month. Workshop Ningbo Sanzheng Plastic Co., Ltd. is a National High-Tech Enterprise specializing in manufacturing various nylon cable ties and wiring accessories, with an annual production exceeding 3,500 tons. The company has consistently increased R&D investment to enhance product performance in recent years. Through continuous technological innovation and an internationalization strategy, it has secured 26 patents and multiple international authoritative certifications. Its products are sold globally, steadily enhancing the reputation of "intelligently manufactured in China" in international markets.  Having focused on the nylon cable tie sector for 14 years, Sanzheng Plastic Co., LTD. has dedicated itself to the R&D and production of nylon cable ties and wiring accessories, gradually growing into a benchmark enterprise in domestic field. "Technological innovation is the core driving force of enterprise development," stated Peter Guo, the company's General Manager. The company invests 7% of its annual output value into technological innovation, achieving significant results in product performance modification. To solve the issue of cable ties becoming brittle and broken in winter, the company modified raw materials to develop a low-temperature-resistant product capable of withstanding Russia's extreme environments of -40℃ to -60℃. To meet high-temperature application demands, the heat resistance of the ties was increased from 85℃ to 120℃ and even 150℃. According to the climate in Africa-hot and humid, UV-resistant products were launched, which is effectively solving the problems reported by customers. High & Low Temperature Testing   Through sustained innovation, Sanzheng Plastic has built a technological barrier centered on 3 invention patents and supported by 23 utility model patents. It has successively obtained ISO 9001, ISO 14001, and ISO 45001 certifications, GB/T 29490 intellectual property management system certification, and an energy management system certification, achieving dual enhancement in technical strength and standardized management. Superior product quality has earned the company international authoritative certifications including TÜV, UL, UKCA, BSCI, CE, RoHS, and REACH, opening doors to global markets. Currently, 90% of its products are exporting, reaching over 60 countries and regions including the UK, Italy, Japan, Brazil, Russia, and the US. The company has established solid trade networks in Europe, America, Japan, South Korea, and markets along the Belt and Road. Facing the vast international market, Sanzheng Plastic Co., Ltd. is not complacent but actively strategics for greater growth. The company plans to focus strategic expansion on emerging regions like South America, establishing localized marketing teams to deeply understand industrial demands in countries such as Brazil and Peru. For new market development, it fully utilizes platforms like Alibaba, Made In China and Google, and has built its own independent website to expand online business comprehensively. Besides online, it actively participates in over 10 international trade exhibitions annually, engaging face-to-face with global clients, showcasing product advantages, and exploring collaboration opportunities. Peter Guo revealed that the company's output value grew by approximately 50% in Q1 of this year, with orders already scheduled through September. As global demand for eco-friendly materials rises, the company keenly captures market shifts. It continues to increase R&D expenditure to upgrade modified plastic formulations and develop more high-performance cable tie products tailored for hot and humid climates, consolidating its leading position in the global wiring accessories sector.
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