valve spring ring1,000+ factories verified

We are established in 1990 and specialize in researching and developing various engine valves & pistons which widely used in Locomotive, Construction machines, Generator and Marine. OEM and ODM service also can be provided to meet different customer's requirements. Annual production value exceed 200 million, involving more than 1000 models. Our mission is to continuously make improvements which enable us to fulfill customer expectations. In order to control risks and seek development, we introduced world class manufacturing facilities, state-of-the-art production technology to promote quality to ensure customers' demands will be achieved, introduced advanced and complete management system to make us become more and more powerful. We have rich experience in cooperating with customers from all over the world, so the communication between us will be smoothly, and our business will be easily.

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.

• Hong Fu Xin precision technology company founded in 2004 with having ISO9001: 2008, RoHS certificates. We are specialized in diecasting parts in past 15years. We have full-automatic diecasting machine from 88t to 1250t, 4000m2 sand casting workshop, various CNC machining equipment. We are familiar with various surface treatment which have electroplate, Powder coating, anodized, high Polishing, Shot blasting, Sand blasting so on… The company's lead products are aluminum alloy TV computer bracket. LED radiator, lighting fitting, phone accessories, connected parts, motor shell, hardware, auto parts series, mould design etc… We always supply the best solution and top quality to our clients. Clients' markets from North America to most of Europe market, Russian, New Zealand, East Asian, etc. We stick to the principle "quality first, service first, continuous improvement and innovaion " to meet our customer's satisfaction, offer complete Die-casting.

Hebei SiPaiTuo Seal Technology Co., Ltd is abbreviated as Hebei SPT Seals Technology Co., Ltd. SPT seals company is located in Julu Economic and Technological Development Zone, Xingtai City, Hebei Province, close to the expressway and with convenient transportation.

Walle Company (Dongguan Walle Sealing Technology Development Co., Ltd. Of Hong Kong Walle Sealing Technology Development Co., Ltd. ) has a variety of sealant formulations and advanced production equipment and testing equipment, using the most advanced materials and technology to meet customers extremely demanding job environment. In view of international developing, we introduce the well-known quality assurance system ISO9001: 2008 into our company to control every stage of the process. This is to achieve consistent and reliable services. Walle company has a flexible, with over 20 years experience in production and R & D technical staff, and international responsive service, providing customers with a variety of sealing solutions.

QingDao Carlock Sealing Technology Co., Ltd

Velmo is a global manufacturer of industrial machinery components dedicated to providing high-performance, reliable, and stable mechanical parts and engineering solutions across diverse industries.

Jiangsu meivalve machinery Co., Ltd. is committed to high-end petroleum equipment and accessories manufacturing modern large enterprises. The headquarters and factory are located in jianhu county, jiangsu province, an important production base of China's petroleum equipment industry. Meivalve company providing products including wellhead equipment and christmas tree, choke and kill manifold, mud manifold, casing head, tubing head, fracturing head, all kinds of high pressure valves, high pressure swivel joint, hammer union. Main products products are performing  6A 16C standard, and can provide special product customization service according to customer's requirements.

JinJiang Stable Technical MFG Co. Ltd was found at 20251. Company location, located at Quanzhou, Fujian, China. Found at 1983, As 1st and second tier supplier for the auto OEM company. Covered more than 20000 square meters and with 439 employees.

Taizhou Enpower Seal Co., Ltd. is located in Xianju, Taizhou city, China, founded in 1988, the annual sales of 100 million yuan, plant covers an area of about 70 mu, 330 employees. Main products: Transmission and electric drive oil seal, engine oil seal, shock absorber oil seal, pump oil seal, household appliance seal, high pressure water seal, industrial oil seal. Main supporting customers: CRRC, Dongfeng Motor, Ruili Group, Quanxing Seiko, ZOMAX, SR, WLY, Shanghai Electric Drive, Shanghai Bit, Sigmax shock absorption, Midea, Gree, Zhongda Electric, Yili, NAVECO, Xinyuan Group, JF Power, etc.

Our company specialized in tc, tb, ta oil seal, hydraulic oil seal, crankshaft oil seal, valve stem oil seal, high pressure oil seal, oring, gaskets and other rubber parts which can meet your multifarious demands. We own various equipment, like modeling, metal surface processing, anti-errors in burdening, refining rubber, PTFE sintering, PU presynthetics, vulcanization, edge trimming, experiment testing, material storage in constant temperature, etc. The equipment for design, development, production is advanced and complete. We can also produce according to your samples and the quality can be absolutely guaranteed. We have more than 20 years experience and our products have been exported to more than 60 countries in the world. We adhere to the management principles of quote& Quality first, customer first and credit-based" Since the establishment of the company and always do our best to satisfy potential needs of our customers. It is striving for meeting the customers' request and surpassing their expectation by depending on all staff participate, conducting Zero Defect manage-ment, controlling process strictly, improving processes continuously, quality products and service.

Xiamen Flying Silicone Rubber Co; Ltd is a leading professional manufacturer for silicone & rubber and LSR parts according to 2D & 3D design drawings, samples for more than 15 years, which will make you to turn your ideas into reality.

Jiangsu Linwei New Material Co., Ltd. is located in Yongsheng Industrial Zone, Baqiao Town, Yangzhong City, Jiangsu Province.

KORI Auto Parts Co., Ltd. is a professional foreign trade enterprise specializing in auto parts, co-invested by three well-established companies with profound industry experience: Biyamaike (founded in 2012), Ruisai factory(founded in 2017) and Yiguan Factory (founded in 2023).

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.

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.

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.

Jining bst Import & Export Co., Ltd. Was established in 2002, the company registered capital of 1000000, is a set of engineering machinery, accessories production, sales agents, customer service, repair service technology as one of the professional management of joint-stock company, with engineering machinery fittings independent import and export qualification, at present the company's business scope covers Komatsu Shantui bulldozer, excavator, loader machine, roller and engine accessories such as host, engineering machinery crawler chassis parts, engineering machinery "four wheel", transmission parts, pieces of metal structures such as the four major categories of series, thousands of varieties of parts products, since the establishment of the company always adhere to the good faith management, relying on engineering machinery accessories international well-known manufacturers, the establishment of a sound market sales channels, professional customer service service system. With its high quality products, pure and reliable quality, fair and reasonable price, professional service has won high recognition of clients, has become China's construction machinery industry well-known agent enterprises. Baishite the unremitting efforts of all staff, the company's business scope covers the whole country, and explore the Eastern Europe, East Asia, South America and other international markets.

Guangzhou Ning E-plastics Co. Ltd is specializing in POM, PA6, HDPE, Polyurethane, Polypropylene, Acrylic Perspex, PTFE, CNC items. We can also accept the customers's special design. As Chinese manufacture, We combines decades of invaluable experience and expertise with youthful enthusiasm, Modern equipment and professional in production. Bringing you dedicated customer service and at the best price. Based on mutual trust, To maintain and develop good cooperated relationship with client are our priority. In the past, We have been examined and past the test successfully via different requirement from customers. GuangZhou Ning E-Plastics Co. Ltd has been a well -know company and enjoys the high reputation in the world.

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.

HUZHOU CCDM LOGISTICS Co., Ltd. Was established in 2000 for the purpose of technically serving the conveyor roller and conveyor components industries. With the experience of more than 20 years, we are the leading manufacturer and exporter of various kinds of conveyor components in China.

DAHAI Is the China's largest mining truck spare parts manufacturer.

Established on April 20, 2005, Chengdu Changyin Trading Co., Ltd has more than 20 employees, and its main business is processing and selling of auto parts. The company, located in Wuhou New Town, Chengdu, has developed transportation network as well as smooth and convenient logistics. In December 2003, the company started strategic cooperation with Chengdu Shengbang Seal Co., Ltd. (the predecessor of the company was Chengdu Tongda Special Rubber Co., Ltd., with more than 30 years of rubber seal production experience), and became the national general distributor of its "TON" supporting products. The existing products cover automobile engine seals, chassis seals and accessories, engine repair kits, engine basic machines, etc. Apart from supplying domestic main engine supporting products, our company has also accelerated the export business expansion. At present, we mainly export high-quality oil seals to Russia, Iran, Malaysia, South Africa and other countries. Meanwhile, the forklift basic machines produced by our company are exported to Canada and other countries with high standards. To further open the seal market, our company has a rubber and plastic technology holding company, which runs through the whole production system of R&D, production, promotion and after-sales. Our company offers variety of products which can meet your multifarious demands. We adhere to the management principles of "quality first, customer first and credit-based" since the establishment of the company and always do our best to satisfy potential needs of our customers. Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with anirresistible force.

Hangzhou Thaeon Hytec Ltd is located in Hangzhou, Zhejiang Province, is a focus on sealing products research and development, production and sales of national high-tech enterprises. The product material includes all kinds of rubber materials and some engineering plastics. It is an ideal supporting enterprise for semiconductor, pump valve, automobile, motorcycle, machinery, home appliances, sanitary ware, mining, new energy and other industries.

Liuzhou Pinmo Sealing Sci-Tech Co., Ltd. is a renowned scientific and technological enterprise that specializes in research and development, production, and sales. Situated in Liuzhou city, a prominent industrial hub in southwest China, our factory spans across an impressive area of 8, 000 square meters and boasts a dedicated workforce of 250 skilled employees. We take immense pride in being the designated supporting manufacturer for local SGMW and LiuGong machinery.

Anhui Jicheng Trading Co., Ltd, with registred capital USD4.5 Million, is located in the capital city of Anhui province. Which is only 3 hours away from Shanghai port.

Shandong Rosenwell petroleum technology Co., Ltd (hereinafter as Rosenwell company) is located in Dongying City, Shengli Oilfield(Belongs to Sinopec), which is the second largest oilfield and the largest petroleum industry base in China. Rosenwell company is a professional company engaged in petroleum equipment and spare parts, which is a reputable manufacturer and solution provider to oil gas drilling industry. We are focused on consumable parts, aiming for increasing parts life span, reduced operational cost, shorter downtime. Based on our domestic business with Shengli oilfield and professional engineering&commercial team, Rosenwell had built up a solid network and same-boat partnership with worldwide clients. Key advantage: OEM quality, 100% interchangeable. Competitive prices, In-time delivery, after-sales warranty service. The major scope of our products is, Top Drive System Spares, Mud pumps & spares, handling tools, BOP and BOP spares of RAM, Seals, etc We sincerely look forward to the chances of serving esteemed customers from all over the world and win-win business in the long run.

Founded in 1999, Zhuzhou Hongda Polymer Material Co., Ltd(ISO9001: 2008 Certified Enterprice), is a national high& New technology enterprise covering an area of 50000M2 in the XINMA Industrial Park, which is located in Zhuzhou city -- the transportion hub in Southern China.

Shanghai HSCO Group - A Reliable Global Partner in the Hydraulic Industry

Ningbo High-tech Zone Tosion International Trade Co., Ltd. Was founded in 2013 as a small, unassuming trading company. We have now in 2025, achieved the distinction of being among the first international traders in the hydraulic industry a substantial increase in sales in the Ningbo region. In the face of the fiercely competitive Chinese market, we have consistently been asking and exploring one question, "What is the unique value of Tosion? "