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Qingdao Ruichen Sealing Technology Co., Ltd. is a professional manufacturer of hydraulic sealing elements. Its leading products include high-pressure seals, hydraulic seals, rotary seals, machined seals, Spring-Energized Seals (such as metal seals like piston rings or rod seals), and high-performance sealing materials. The company holds an advanced domestic level in specialized fields such as ultra-high/high-pressure sealing, high-pressure high-speed rotary sealing, and mold-free machined seals. These products are widely applied in hydraulic machinery, plastic machinery, food & pharmaceutical machinery, petrochemical equipment, and other civil and military products.

Company Overview

QingDao Carlock Sealing Technology Co., Ltd

Guangdong DEF Seals Solutions Co., Ltd. is a leading seals original manufacturer carrying with more than 20 years professional experience, focus on full series hydraulic seals and PTFE component seals, which including guide rings and Spring Energized Seals, as well as CMRD (Custom Made, Rapid Delivery) urethane and rubber seals.

HENWEIT is a leading enterprise in the field of core engine parts in China, specializing in the research, development, production and sales of pistons, cylinder liners, piston rings, piston pins, Bearing, valves and other full range of engine parts. As one of the largest manufacturer of heavy-duty engine pistons in China, we continue to provide reliable protection for global power systems with a complete product matrix covering cylinder bores from 30mm to 420mm, as well as the world's most complete range of steel pistons and iron piston technology solutions.

Xingtai Shuoxi Trading Co., Ltd is a professional manufacturer of rubber oil seal, customized rubber parts, customized PU products, rubber O ring, rubber damper and so on. The material canbe NBR, EPDM, FKM, MVQ, NR, PU, BAKELITE.

Founded in 2010, Sokun is a leading OEM fastener manufacturing, plating/finishing, and industrial production company. We are dedicated to providing high-quality fasteners at competitive prices to customers worldwide. With over 11 years of experience in manufacturing a full range of fasteners-including stainless steel, galvanized, and zinc options-we combine industry expertise with state-of-the-art facilities to deliver products that exceed customer expectations. Sokun is equipped with an R&D department, an in-house design team, and a warehouse stocking location, ensuring we can meet your demands efficiently.

Shandong Meiling Chemical Equipment Co., Ltd. Was built in 1958 and currently employs more than 1, 200 people, including college education of engineers and technicians account for more than 30%. Enterprise total area of 360, 000 square meters, engaged in energy-efficient heat exchanger design and manufacture of non-ferrous metals (titanium, zirconium, nickel) pressure vessel; Automotive braking systems, exhaust manifold, turbochargers and other auto parts manufacturing; High-strength fasteners, air conditioning centrifugal fan, heavy forging manufacturing; Design and manufacturing, environmental engineering design, construction and operation of urban water supply and quality of production of mineral water and other environmental protection equipment.

Liaoning Mais Sealing Technology Co., Ltd. is a well-established and reputable factory located in China.

Cairong (Tianjin) International Trading Co., Ltd., established in 2005, is a professional integrated industrial and trading enterprise located in Tianjin, China, enjoying a strategic location and convenient transportation. The company specializes in the development, manufacture, and sale of rubber raw materials, rubber seals, injection molded products, and metal molds. We provide customized solutions for the automotive, industrial machinery, electronics, aerospace, and oil and gas sectors, both domestically and internationally. Our products are exported to North America, Europe, and the Asia-Pacific region. We are ISO, SGS, and CE certified, and guarantee compliance with international standards and regulations such as RoHS and REACH. Over the years, while ensuring product quality, we have been committed to providing customers with cost-effective solutions. Our professional OEM&ODM design, R&D, and manufacturing team can provide comprehensive support from product conception to mass production, ensuring we can tailor tailored products to meet your needs. Solving problems for our customers and satisfying their needs is our unwavering pursuit.

Dezhou Drillstar Company Limited was established in 2013 and is located in Dezhou City, Shandong Province. Dezhou Drillstar Company Limited is a high-tech enterprise specializing in the R&D, production, and sales of deep hole machining. We have built a complete industrial chain from materials to finished products, providing, not only various grades and specifications of cemented carbide bars, insert blanks, strips, blocks, and other cemented carbide products such as wear-resistant parts tungsten carbide, tunnel boring machine tungsten carbide, oilfield tungsten carbide, mining tool tungsten carbide, cemented carbide coal cutting teeth, rotary drilling teeth, tungsten tungsten carbide, Stellite tungsten carbide, and wrought high-temperature tungsten carbide, but also, leveraging our material advantages, customizing high-performance precision machining tools for our customers. Our products include single-sided alloy welded drill guns which can be modified into mechanically clamped drill guns, double-edged drill guns, alloy one-piece drill guns, stepped-edge drill guns, BTA drill bits, drilling tools, deep hole scrapers, honed grinding heads, boring heads, and gun reamers, etc. Meanwhile, the company provides various types of deep hole machining tools, including CNC deep hole drilling machines, deep hole boring machines, deep hole punching machines, deep hole broaching machines, CNC lathes, machining centers, and used machine tools to meet the processing needs of different customers. We are your trustworthy one-stop solution partner.

Luoyang Heng Guan Bearing Technology Co., Ltd.

  Yishui Xinsen Stainless Steel Products Co., Ltd. is a large-scale integrated service provider specialising in stainless steel products, combining processing manufacturing with trade distribution. Situated on the Shandong Peninsula with its advantageous location and convenient transport links, the company leverages its core geographical strengths to efficiently connect upstream and downstream industries. It has cultivated deep expertise in the stainless steel products sector, steadily building robust core competitiveness within the industry.

Maanshan Fangyuan Precision machinery Co., Ltd is a private enterprise, which is the largest manufacturer specializing in designing and manufacturing slewing rings in China more than thirty years. It is the unique enterprise on Stock market.

Wenzhou Jianqing Industrial Company was founded in 1977, is now located in Wenzhou, Zhejiang, China Marine economic development demonstration zone, construction area of more than 30, 000 square meters, annual output value of 100 million, with more than 200 sets of professional equipment, is a professional production, research and development of reciprocating compressor parts of science and technology enterprises.

Sonkit Industry was founded in 2015 and is dedicated to the development and manufacturing of high-quality metal seals that meet the stringent requirements of various applications. The daily production capacity is approximately 1, 500 units. Over 80% of the processing and inspection equipment utilizes digital and intelligent control technologies. The company is equipped with a professional technical team covering multiple fields such as mechanical design, manufacturing, and quality control, and features custom-designed heat treatment equipment. It holds ISO 9001 and AS9100 quality management system certifications, and its laboratory is in the process of Nadcap accreditation. Special processes include welding, heat treatment (in compliance with the AMS2750 aerospace standard), and NDT (non-destructive testing). Its services reach over 20 countries, including the United States, Germany, Italy, France, the United Kingdom, Hungary, Turkey, Romania, India, and South Korea, serving more than 2, 000 customers, among which are numerous Fortune Global 500 companies.

Ruichen Seals founded in 2006, covering an area of 18000 square meters, is a collection of research and development, production and sales of various rubber sealing parts enterprises. After 18 years development, Ruichen has more than 300 staffs and the current annual amount is 15 million US Dollars.

For nearly 20 years, Jiangsu Yihao Fluorine Plastic Manufacturing Co., Ltd. Has been the China's leading supplier of PTFE piping systems. We offer PTFE pipes, sheets, rods, gasket sheets, pall rings, ladder rings, rasching rings, eye rings. As we look forward we have expanded our range to include PTFE lined Stainless Steel, Carbon Steel pipes and fittings, elbows, tees, Cross, Valves, PTFE hose together with a comprehensive selection of installation tools and fixings. We provide levels of service which are un-matched in our industry, backed by a quality system accredited to ISO 9001 - 2015.

Pingxiang Lingjin Environmental Protection Packing Equipment Co., Ltd. Is currently a large-scale professional comprehensive production base in China for new types of packing, environmental protection filtration equipment, catalysts, molecular sieves, and other related products. The company has convenient transportation, adjacent to Hunan, close to the Zhejiang Jiangxi Railway and National Highway 320319. It is also an environmentally friendly, energy-saving, and high-tech physical production enterprise.

Was founded in 1990. With over 35 years of experience, which has become a prominent name in the global sealing industry. The company is driven by a passion for innovation, an unwavering commitment to quality, and a relentless pursuit of excellence. These core values have enabled DEDE to stay at the forefront of the industry, providing high-quality sealing solutions while continually expanding its market reach.

Voneseals Technology Co., Ltd.,  is a specialized sealing solution provider. Voneseals' foundation is built upon stable and reliable basic materials and strategic R&D, integrates excellent resources both domestic and abroad to provide customers with professional sealing system solutions.  

Taizhou Lianghao Electromechanical Equipment Co., Ltd. is a high-tech enterprise integrating the R&D, design and manufacturing of high-performance sealing components. Centered on sealing demands under extreme working conditions, we supply standard products and customized sealing solutions, committed to fully replacing imported seals with domestically produced high-performance alternatives for global high-end manufacturing clients.

With 35 years experience in producing rubber oil seals, Jiang Yin (No. 3) Rubber Manufacturer Co., Ltd. is a professional manufacturer and industry leader in the researching, manufacturing and selling types of skeleton oil seals, O rings, Rubber gaskets, Pump valve oil seals and Oil seal cover.

The company produces and exports various fluid sealing products and materials. Main business: PTFE products (processed parts), packing materials, sealing gaskets, anti-corrosion steel-lined pipe fittings and tanks (plastic-lined), etc. The products are applied in industries such as petrochemical, oil refining, power, shipbuilding, semiconductors, new energy, nuclear power, and military. Meanwhile, the products are exported to Europe, America, the Middle East, South Korea, Japan, and Southeast Asian countries and regions. Polytetrafluoroethylene (commonly known as plastic king) has excellent comprehensive properties such as corrosion resistance, high temperature resistance, aging resistance, high insulation, high lubrication, non-adhesion, etc., and is widely used in aviation, chemical, electronics, machinery and other industries. The white and black combined seal ring is used for ISO-TANK (international standard container, referred to as tank box, mainly used for the transportation of dangerous chemicals) tank mouth seal. The sealing ring used in the tank is divided into ordinary sealing ring and super sealing ring, commonly known as white and black (that is, white and black combined sealing ring). Domestic and foreign fluorine-coated D-type sealing rings are joint products, and the tetrafluoroethylene joint part is damaged by the sodium layer during high-temperature melting, which directly affects the adhesion between the tetrafluoroethylene film and the rubber body. In addition, the parting surface of the product mold is on both sides of the sealing ring, so the inner ring of the product inevitably appears the parting surface flash, which not only affects the appearance of the product. Mperature resistant silicone rubber O-ring and low pressure variable fluorine rubber O-ring is determined. Inorganic fillers were used to fill and blend modified fluorine plastics, and the types and dosage of fillers were studied. Independently developed mold structure, under the condition of precise positioning of rubber O-ring, injection modified fluorine plastic method to achieve a molding, full coating process. Main technical indicators: According to JB/T 10706-2007, fluorine plastic fully coated silicone rubber O-ring: Tensile strength

Zhejiang Yingdeer Sealing Parts Co., Ltd. is a high-tech company, specializing in R &D, production, and sales of polyurethane and rubber seals with over a decade of experience in the sealing industry. The company has inherited the experience in the field of seals, integrated advanced CNC injection molding, rubber vulcanization hydraulic production equipment, and precision testing equipment. It has established a specialized production technical team and successfully developed sealing ring products for mining hydraulic and pneumatic systems, plastic machines, and engineering machinery. The company has approximately 120 employees and its products are highly favored and praised by users both domestically and internationally. The beautiful scenery and convenient transportation are the inherent advantages of INDEL. Striving for excellence and technological innovation are the principles of Innovent's entrepreneurship. With reliable product quality and excellent after-sales service, INDEL people have promoted the development of sealing products in China!

Guangzhou Zhuo Yue Seal Tech Co., Ltd is an integrated company specialized in seals manufacturing and sales, and we are the general agent of SJ Korea BRAND SEALS designated in China.

Ningbo Boman Mechanical & Technology Co., Ltd was founded in 2010, Located in Ningbo, one of the largest ports in China. Company adhering to the "Industrial change life" business philosophy with the international working style and localization professional spirit, service to the worldwide customers.

"Hairen Rubber and Plastic" was established in Shanghai in July 2011. As a leading domestic supplier of rubber and plastic products, our company provides a full range of rubber products including FKM, HNBR, FFKM, EPDM, NBR, CR, SBR, NR, IIR, and Si. These products are widely used in the automotive, aerospace, medical, home appliance, and industrial fields, primarily for critical applications such as sealing, vibration damping, and connection. With excellent temperature resistance, oil resistance, weather resistance, water resistance, and corrosion resistance, we provide reliable rubber and plastic solutions for various precision equipment.

Established in Xiamen in 2001, Xiamen TuoYan Seals Technology Co., Ltd. Specializes in the research and development of sealing solutions and sealing components for fluid power systems. The company integrates research and development, production, and sales, and has complete production and testing equipment, including CNC machining centers, CNC lathes, large hydraulic presses, computer-controlled sintering furnaces, flat vulcanizing machines, precision injection molding machines, fully automatic fiber impregnation machines, and laminating machines. The company has passed the ISO 9001: 2015 quality system certification and has been recognized as a high-tech enterprise in Xiamen.

Julu hengfeng seal factory specializes in producing all kinds of asbestos-free gaskets, graphite gaskets, stainless steel stamping gaskets, metal-coated gaskets, rubber gaskets of various materials, sealing rings and diesel engine filter elements, and has more than 20 years of production experience. The surface color, material, length and thickness of all products can be customized according to your needs. We will provide you with high-quality materials, perfect design, accurate size and thoughtful service. Our factory organizes production strictly according to ministerial standards and national standards, and does a good job in after-sales service to ensure product quality, and fully meets the technical conditions for the production of the above products. Over the years, the product quality is stable, best-selling all over the country, get the user's praise, the company's surrounding resources have outstanding advantages, superior geographical location, convenient transportation, logistics network all over the country, the company provides customers with first-class products, survival by quality, development by service, and always adhere to the contract and keep faith as the enterprise purpose. Since its establishment, the factory has adhered to the principle of high starting point, high quality and high standard of service. The use of advanced equipment and advanced testing means, bring together many years of rich experience in production, to create perfect products for users. Julu hengfeng seal factory looks forward to long-term cooperation with you.