Product CenterOur company specializes in the production of safety valves for lead-acid batteries, lithium batteries and supercapacitors....
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Enterprise honorOur company has won a number of honors for its excellent product quality and good corporate reputation....
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Service & SupportWe always adhere to the policy of "customer, integrity forever", and provide every customer with perfect service
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About usHongdaabout

Established in 1993, Zhejiang Hongda Special Rubber Products Co., Ltd. is famous

China Battery Safety Valve Manufacturers and Wholesale Rubber Safety Relief Valve Suppliers

. The company is located in Zhoushan, the eastern immortal Island with beautiful scenery and outstanding people. We are professional manufacturer of safety valves, safety caps, explosion-proof discs, terminal post sealing rings, O-rings, acid injection nozzles and polymer microporous plastics for lead-acid batteries, lithium batteries and supercapacitors. The company has become a well-known high-tech enterprise through continuous innovation, reform and development.

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Established in 1993
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Company area
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Employees

Producecenterproduct

OuradvantageAdvantage

Our company adheres to the enterprise purpose of "customer, integrity forever", follows the quality policy of "prosperity by quality, creating excellence", and implements the enterprise spirit of "development as the key link, innovation as the soul, market as the priority, and service as the source", and adheres to the management mode of "people-oriented, common growth, reasonable sharing". After more than 30 years of continuous innovation and development, Hongda is gradually realizing the corporate goal of "building a national and global valve supplier tycoon".

Patent technology

Our company has established a research and development test center which has passed provincial certification, we developed independently more than 50 patented products, and took the lead in drafting 1 national standard, 6 industry labels, and 1 "Made in Zhejiang" group standard.
Customized service

Design and produce products according to customer technical requirements.
high-quality raw materials

The raw materials are selected from the global market. All indicators have been strictly tested by IQC to ensure the quality of each batch of raw materials.
Quality Assurance

Quality inspectors conduct sampling inspections on semi-finished products. We develop independently automatic air pressure testing equipment to conduct full inspections of air pressure on all safety valve products, to ensure the quality of finished products.