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Shanghai Dongzhiding Rubber and Plastic Technology Co., Ltd. is a renowned enterprise specializing in the research, development, production, and sales of high-quality rubber and plastic products. Established in [year], the company is located in [location], Shanghai, a global hub for technology and industry. With a strong commitment to innovation and customer satisfaction, Dongzhiding has emerged as a leading player in the industry, offering a wide range of products and solutions to meet diverse market demands.

Company Overview

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.

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

Xingtai Zhengmai Rubber Technology Co., Ltd. is strategically located in the Julu Economic Development Zone (provincial level), Hebei Province, with excellent transportation links and a favorable industrial environment. Established in 2015, the company spans a modern facility of 24, 000 square meters and has grown into a specialized and reputable enterprise dedicated to the R&D, design, manufacturing, and sales of high-performance rubber sealing solutions.

DMS SEALS was established in 2008. We are a technology enterprise which specialized in the production of seals, the development of seals material and the solution of the sealing of special working condition. We own 120 staffs which including 70 middle and senior technicians. Our factory covers more than 10000 square meters which including 8000 square meters for the workshop. Our production equipment and test equipment are on leading level in the same industry. We are the one of the biggest enterprise who specialized in manufacturing and developing seals in China. We have long time cooperation and communication with many universities and research institutions at home and board. We own a number of invention patents and leading production process. The R&D teams have the ability to design and develop seals for various of complicated working condition of sealing system. We have already passed the certification of ISO 9001 and IATF 16949. We have the mature technical reserve for the solution of ultra-high temperature, ultra-high pressure, ultra-low temperature, highly corrosive and other special working condition. Our products are widely used in construction machinery, automobile, automation equipment, petroleum, water conservancy, chemical engineering, aviation and other area.

UniLuTek Industry Co., Ltd is the professional manufacturer of Rubber Molded Parts and Rubber Profiles in North China. We are engaged in rubber and plastic Production, Product R& D and Marketing. As a private owned business, UniLuTek was established in 2001 with the first name of Shuanghe Rubber Product Factory, then changed into the present name in 2006. After years' development, UniLuTek has been a comprehensive enterprise including production, trading, importing and exporting etc.

Xiamen Yuken Import and Export Co., Ltd. is a professional trading company specializing in rubber and plastic products, strategically located in Xiamen, Fujian Province-a beautiful coastal city with numerous ports and convenient transportation networks. We own our manufacturing facility, integrating R&D, production, and international trade into a seamless operation.

Our company is specialized in producing all kinds of hydraulic oil seal, auto seal, rubber seals, such as O-ring, FKM oil seal, stainless steel PTFE oil seal, rotary seal (hub oil seal, box oil seal), etc., which are mainly used in hydraulic and pneumatic aspects, and widely used in plumbing, hardware, home appliances, medical equipment, machinery, electronics, semiconductor, aerospace, military and other fields The main materials used in our rubber sealing products are NBR, EPDM, FKM, HNBR, silicon, ACM, ffkm, etc.

 Xiamen Zhongying Electronic Technology Co.,  Ltd is a specialized manufacturer of high-quality injection molded plastic products and silicone rubber components. With years of industry experience, we serve as a trusted manufacturing partner across the automotive, medical, consumer electronics, industrial equipment, and household appliance sectors. We offer both OEM services-accurately producing components from customer-supplied samples, drawings, or existing tooling-and ODM services-providing in-house design and engineering support to bring new product concepts to market.

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.

Tongxiang Spring Rubber & Plastics Tech Co., Ltd. is a joint-stock enterprise integrating development, production and trade. Spring is endowed with ideal geographic conditions and convenient traffic, only 100 kilometers from Shanghai in the east, the largest harbor in China, and 60 kilometers from beautiful West Lake Hangzhou in the west.

We are a specialized rubber parts manufacturer with over 30 years of manufacturing experience. Our company mainly produces rubber parts for medical appliances, household appliances, electronic products, automobiles and toys. Both foreign and domestic advanced rubber production and test facilities and efficient scientific management have been introduced for our automatic production. We are well equipped with highly qualified technicians and excellent production and management team. Rigorous inspections are carried out from raw material to finished products with adequate quality system standards. We are the manufacturer with advanced technology, high quality products and good reputation among our 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.

Shenzhen Hongweixin Technology company founded in 2015Y, the factory located in Shenzhen Longgang district. The company specializes in the production of silicone tube, silicone strip, silicone foam pad and various specifications of silicone molded parts and other silica gel products, widely used in food, medicine, daily chemical, hardware and other industries.

Nanjing Demeter Rubber & Plastic Products Co., Ltd. is a professional manufacturer of rubber and plastic products integrating scientific research, production, sales and service. The company is committed to providing high-quality rubber and plastic products for domestic and foreign customers.

Our sealing products factory is located in hangzhou city, zhejiang province. Founded in 2014, the company is a comprehensive sealing enterprise integrating sealing design, r & D, production, agency, storage and sales. The company has seven companies and three field engineers who have been engaged in the sealing industry for some years. Excellent sealing design and development capability, advanced processing equipment and technology, high-quality imported raw materials (hydraulic reciprocating seal) and skeleton rotary seal; Products are widely used in: Hydraulic and pneumatic construction machinery. Petrochemical machinery and electronics. Electricity. Shipbuilding. Papermaking. Coal mine pump valve and other fields

Since 2007, Quanzhou Shengda Rubber Products Co., Ltd l has been a manufacturer in sealing solutions. We specialize in manufacturing standard and custom o-rings, seals, gaskets, molded rubber products, and more, using a variety of elastomers. Since its establishment, our company has taken scientific and technological innovation as the development momentum of the enterprise. Through continuous introduction of advanced technologies at home and abroad and a set of rigorous management mode, its products are exported to many countries and regions at home and abroad, and become a long-term strategic partner for domestic and foreign merchants. Our range of products includes Rubber expansion nuts, O-Rings, Rubber mount, custom molded rubber gaskets and rubber washer and so on. Our o rings include AS568 series, JIS standard, ISO standard and Non-standard, more than 4000 sizes are available. Our main market is Nort America, Europe and Southeast Asia.

As an ISO 9001 certified company, Xiamen Best Seal specializes in rubber o-rings, X-rings, rubber gaskets, rubber washers, rubber molded parts, metal/plastic bonded to rubber parts, and so on.

Qingdao Weilian Plastic & Rubber Co., Ltd. is a leading rubber and plastic parts manufacturer in Shandong province. With more than 10 years field experience. The area of factory is 3000square meters, Plant with Reasonable layout. The staff worker has around 30 people, The administrative staff has 10 persons, 5 engineers, 6 inspection persons. Our products are sold at home and abroad with high quality. The main product for rubber we manufactured are automobile rubber spare parts, Household appliance rubber accessories, Engineering rubber parts and so on.

Dongguan Youchuang Technology Co., Ltd. is a leading manufacturer based in Dongguan, China, specializing in the design, production, and distribution of high-quality adult products since 2019. With a strong commitment to innovation and customer satisfaction, we have established ourselves as a trusted partner in the adult toy industry. Our in-house team of skilled designers and engineers, combined with our state-of-the-art production line workshop, enables us to deliver exceptional products tailored to meet global market demands.

Tianjin King Seal Technology Co., Ltd. Has been focusing on the rubber seal industry.

**Our Company: **

Our company name is Shenzhen Jiuhong Century Seal Technology Co., Ltd. We are a professional rubber seal product manufacturer. Our products include rubber O-ring, gasket, oil seal, O-ring kit, gearbox kit and any customized rubber products.

Guangdong Engineering Plastics Industries (Group) Co., Ltd., located in Huangpu District, Guangzhou, China. Plant area of more than 10, 000 square meters. Our company has full set of high efficiency producing equipment and advanced numerical control machinery, such as: High-precision CNC molding manufacture machines, High-accuracy EDM machines, High-precision mirror wire cutting machines, High-speed precision engraving machines, Laser cutting machines, Sodick slow threading machines, Precision grinders, Plastic injection molding machines, Double color injection machines, fine carving machines, Horizontal lathes, milling machines, etc. It is also equipped with special quality inspection instruments, such as quadratic detector and three-dimensional detector. Our company has many senior engineers with 15-25 years experience! Rich experiences and technology for manufacture, with design, research and development ability, support personalized customization. Can be customized according to customer drawings to sample all kinds of engineering plastic products, such as: Nylon plate rod tube, gear rack, pulley, bushing, POM sheet, UPE guide rail and so on. At the same time, there are PEEK plate and rod pipe, PPS plate and rod pipe, PPSU sheet, PBI sheet and a variety of machined parts.

Jiangsu Keyuan Rubber and Plastic Products Co., Ltd. was established on March 23, 2016. It can independently produce and process branded products. The annual turnover of the factory can reach 50 million yuan, and it has 300 employees. The company mainly engages in rubber products, plastic products, silicone products, plastic products, and the custom-made non-standard mold opening for polyurethane products. It has more than ten years of experience in processing and customization.

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.

The development, manufacture and sale of electronic materials. (Business activities subject to approval in accordance with the law may only be carried out after approval by the relevant authorities.

  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.

Hebei Zhouyu New Materials Technology Co., Ltd is a modern enterprise integrating R&D, production, sales and service. The company focuses on industries such as rubber and plastic products manufacturing, new energy parts manufacturing, and industrial components manufacturing, providing customers with high-quality products and one-stop solutions. With the core concept of "craftsmanship manufacturing and precise service", we continue to deeply cultivate the rubber product field, promote technological innovation and industrial upgrading, and become a trusted partner of global customers.