Lishi Sealing Tech (Ningbo) Co., Ltd.
Lishi Sealing Tech (Ningbo) Co., Ltd.
🇨🇳 China, Zhejiang
5.0
2016101-200 peopleManufacturer/Trading CompanyLishi Sealing Tech (Ningbo) Co., Ltd. is a professional manufacturer and trading company specializing in rubber and plastic engineering for over 15 years. Based in the port city of Ningbo, China, the company operates a 12,000-square-meter factory equipped with rubber compounding facilities, a dedicated testing lab, and 96 molding presses. With a production capacity of 100 million seals annually, the company serves a diverse range of industries including automotive, aerospace, agriculture, construction machinery, oil and gas, and semiconductors.
OEM manufacturerOffers OEM services for customized brand manufacturing.
ODM manufacturerProvides ODM design and manufacturing solutions.
Product customizationOffers full customization for design and features.
High product ratingMaintains an average rating above {{rating_value}} stars.
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Quick-Clamp Tube Fitting Sanitary PTFE Tri-Clamp Gasket Food Grade ISO/DIN Compliant Easy Installation for Efficient Performance
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quick-clamp Tube Fitting
sani Clamp Gasket
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sanitary Ptfe Gasket
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MOTORES Y APARATOS ELECTRICOS DE DURANGO
Certifications
ISO 90013
IATF 169493
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Zhejiang Linshi Sealing Technology Co., Ltd.
🇨🇳 China
1998101-200 peopleManufacturerEstablished brand
Own brand
Product customization
ODM manufacturer
Key customer
BOSCH
Key market
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Description
Zhejiang Linshi Sealing Technology Co., Ltd. is a premier manufacturer specializing in high-performance rubber seals and diesel engine components. Established in 1998, the company has grown into a leading industry player with headquarters in Taizhou and two major production bases in Ningbo and Taizhou, spanning over 24,000 square meters. With a workforce of approximately 200 employees, the firm operates as a specialized ODM and contract manufacturer for global automotive leaders such as Bosch, Cummins, Delphi, and Caterpillar.
The company's extensive product portfolio includes diesel engine fuel pump repair kits, common rail shims, injector O-rings, diesel filters, and turbocharger air pipes. These components are critical for fuel injection, braking, steering, and shock mitigation systems across the automotive, marine, and heavy machinery sectors. Notably, Linshi holds a 70% domestic market share for rubber sealing parts in engine fuel systems, with its O-ring series achieving industry-leading technical benchmarks.
Operating under IATF 16949:2016 and ISO/TS 16949 quality standards, the company utilizes advanced production technology, including dust-free vulcanization workshops and automated molding machines equipped with voice-alarm monitoring systems. Linshi maintains strong R&D capabilities, offering customized solutions for silicone and fluorine rubber seals. With independent export rights and a significant presence in high-end international markets, the company continues to invest in smart factory automation to enhance production transparency and quality control.
Adjusting Gasket
Common Rail Shims Cummins Series
Adjusting Gasket
Adjusting Gasket
Adjusting Gasket
Adjusting Gasket
Common Rail Shims 120 Series
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Ningbo Leap Seals Industry Co., Ltd.
🇨🇳 China
200311-50 peopleManufacturer/Trading Company/Service Company/Wholesaler/DistributorEstablished brand
OEM manufacturer
ODM manufacturer
Own brand
Shipments
736
Key customer
MALAVAZI VEDACOES
Key market
🇧🇷 Brazil
Description
Ningbo Leap Seals Industry Co., Ltd., also known as China Ningbo Seal and Gasket Co., Ltd., is a prominent manufacturer and exporter of high-performance sealing solutions based in Ningbo, China. Established in 2003, the company has grown into a specialized provider of mechanical seals, gaskets, and industrial components, operating with ISO 9001 certification to ensure rigorous quality control standards. The company maintains a significant production capacity, capable of producing over 20,000 sets of complete mechanical seals and 100,000 sealing rings annually.
Their extensive product portfolio includes elastomer bellows seals, O-ring seals, metal bellows seals, cartridge seals, and vessel seals. They also specialize in a wide range of gaskets, such as spiral wound, ring type joint (RTJ), kammprofile, and metal jacketed gaskets, alongside braided gland packings and PTFE products. These components are manufactured using high-grade materials including silicon carbide, tungsten carbide, industrial ceramics, stainless steel, and flexible graphite. Their products are engineered to meet international standards such as ASME, BS, JIS, EN, and DIN.
As a terminal technology solver for mechanical seal faces, the company offers robust OEM and ODM capabilities, providing customized sealing rings, sleeves, and complex irregular parts based on client drawings. Their solutions serve a diverse range of industries, including petroleum, chemical processing, electric power, shipping, metallurgy, pharmacy, and food machinery. With a strong focus on international trade, Ningbo Leap Seals exports to major markets across North America, Europe, South America, and the Middle East, positioning itself as a reliable partner for both standard stock items and bespoke industrial sealing requirements.
100% Virgin Pure Soft Expanded PTFE Sheet$1
Braided Gland PTFE Packing for Valve Seal$1
Asbestos Free Rubber Sheet for Oil Seal Gasket$1
ANSI Ring Type Joint Gasket Rtj for Flange$0.5
Metal Cammprofile Gasket with Integral Center Ring$0.5
Flange Insulation Gasket Kit$0.5
Isolation Gasket Kit for Flange$0.5
Pure PTFE Packing$1
ASME Graphite and Ss Spiral Wound Gasket (Carbon steel Outer Ring)$0.5
Spiral Wound Gasket Used for Flange Valve Jont Seal$0.5
Expanded Pure Graphite Ring Gasket$1
R26 R30 R31 Oct&Oval Ring Joint Gasket Made of 321ss, 347ss$0.5
