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| With or without cap | cap | Valve | Overall Height(mm) | Bonnet Diameter(mm) | Bezel Diameter(mm) | Spool Diameter(mm) | Snap/Thread(mm) | Bezel Thickness(mm) | Upper Soft Rubber Diameter(mm) | Lower Soft Rubber Rubber Diameter(mm) |
| / | / | √ | 127.5 | 43 | 41.5 | 24.5 | 29 | 27.5 | / | / |
Product Center
Contact Us
- Address: No.9, Jinda Road, Yancang Street, Dinghai District, Zhoushan City, Zhejiang Province
- Fax：0580-8807655
- Email：[email protected]
- Email：[email protected]
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Company profile
Started in China, Marketing in the World29 years of research spirit in the industry.
Established in 1993, Zhejiang Hongda Special Rubber Products Co., Ltd. is a professional China HD-55 Lead-acid battery safety valve Suppliers and Custom HD-55 Lead-acid battery safety valve Company. The company integrates scientific research, production and trade, pays attention to scientific and technological innovation, and strives to develop industrial battery safety valve products with high technology content and high quality performance. We has more than 50 industrial battery safety valves, safety caps, microporous materials, explosion-proof discs, etc. patented, among them, microporous materials were identified as national key new products. The company has drafted and formulated industry standards for lead-acid battery safety valves and national standards for rubber seals for power lithium batteries, and has passed a series of system certifications such as IS09001, IS014001, IS045001 and "Made in Zhejiang".
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29 +
Established in 1993
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15 0,000+
Average daily output
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200 +
Employees
Honor
Welcome to visit Hongda
Our company has won the "Zhejiang High-tech Enterprise", "Excellent Demonstration Enterprise of Emphasizing Quality and Integrity", "Zhejiang Science and Technology Small and Medium-sized Enterprise" and many other honors..
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High-tech Enterprise
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National Key New Product Certificate 2008
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2008 The Most Growth Potential Small and Medium Enterprises In Zhejiang Province
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2013 Innovative Demonstration Small and Medium Enterprises In Zhejiang Province
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Advanced Enterprise for Innovation and Development of Small, Medium and Micro Enterprises in Zhejiang Province
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Small and Medium-sized Enterprise with Specialization, Refinement, Characterization, Novelization In Zhoushan City
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Provincial SME Technology Center
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Top 10 Growing Small and Medium Enterprises
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Provincial High-tech Enterprise Research and Development Center
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Zhejiang Enterprise Standard "Leader" Certificate
News
What is new
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New Large Diameter Waterproof Lead-Acid Battery Safety Valve: Innovation for Enhanced Durability and Safety
In a major development for the battery industry, a new large diameter waterproof safety valve for lead-acid batteries has been introduced, offering significant improvements in both...
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Capless lead-acid battery safety valve: a new choice for improving battery safety performance
Recently, a new black capless lead-acid battery safety valve product has made its grand debut, attracting much attention in the industry for its outstanding design and excellent sa...
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The market demand for valve-regulated lead-acid batteries is increasing
The overall height of the safety vent plug is 39 mm, and the appearance design is exquisite, with a 38 mm outer cover diameter and the same bezel diameter. Its coil diameter is 23....
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Polymer microcellular plastic series with excellent heat resistance, chemical resistance and mechanical strength
The production process of polymer microporous plastics has been fully optimized by using advanced manufacturing processes. The quality consistency of each batch of products is ensu...
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Acid injection nozzles are designed for a variety of industrial applications
The Acid Injection Nozzles Collection represents a cutting-edge solution designed for precision and efficiency in various industrial applications, particularly those requiring the ...
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Polymer microporous plastic collectors are high-performance materials with a wide range of applications
Polymer microporous plastic collectors are a high-performance material with a wide range of application scenarios. Due to its unique structure and characteristics, it has become an...
CONTACT US
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ADDRESSNo.9, Jinda Road, Yancang Street, Dinghai District, Zhoushan City, Zhejiang Province
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Tel0580-8803626
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FAX0580-8807655
QUICK LINKS
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Copyright：Zhejiang Hongda Special Rubber Products Co., Ltd.
ICP record number: Zhejiang ICP No. 12033433
OEM /ODM HD-55 Lead-acid battery safety valve Company