oval ring joint200+ factories verified

China Ningbo Seal And Gasket Co., Ltd is one of the biggest sealing and gaskets manufacturers in China. CNSG is a professional manufacturer for more than 10 years engaged in the research, development, production, sale and service of Metal Gaskets, Non-metallic Gaskets, O-rings, Braided Packings, Compressed Gasket Sheets, Insulation Glassfiber and Ceramic fiber Products, etc.

Shandong xilong Machinery Equipment Company Limited is a supplier of drilling equipment for oil and gas industries.

Ningbo Rilson Sealing Material Co., Ltd located in the south of Hangzhou Bay, China, near Hangzhou Ningbo and Shanghai, enjoy convenient transport, is an enterprises integrated science and technology. Professionally engaged in sealing gaskets' and sealig materials' development, promotion and applications.

Cangzhou Shengxin Sealing Material Co., Ltd. is located in the world-famous "Hometown of Martial Arts" and "City of Flange Elbows" - Cangzhou City, Hebei Province, China. It is adjacent to Bohai Huanghua Port in the east, Beijing-Shanghai High-speed Railway and Beijing-Shanghai Expressway in the west, and adjacent to Canglang Expressway and National Highway 307. It has a beautiful environment and convenient transportation. The company covers an area of about 15, 000 square meters and has total assets of more than 6 million yuan. The company was founded in 1985, formerly known as Cangxian Litong Sealing Products Factory, and has been producing rubber products for more than 30 years. After years of hard work, the company expanded its business scope in 1997 and added sealing products such as asbestos gaskets, PTFE gaskets, metal spiral gaskets, flanges, elbows, etc. The company attaches great importance to product quality and timely supply., the price is reasonable, so it is well received by customers...

NINGBO SUNWELL SEALING MATERIALS Co., Ltd is one of the biggest sealing and heat preservation products manufacturers in China. SUNWELL is a professional manufacturer engaged in the research, development, production, sale and service of Metal Gaskets, Non-metallic Gaskets, Braided Packings, Compressed Gasket Sheets, Sealing Equipments, Insulation Products, Hydraulic Sealing products, etc.

General project: Supply chain management services; Sealing component manufacturing; Sales of seals; Rubber product manufacturing; Sales of rubber products; Manufacturing of asbestos products; Sales of asbestos products; Manufacturing of graphite and carbon products; Sales of graphite and carbon products; Sales of graphene materials; Manufacturing of metal wire ropes and their products; Manufacturing of plastic products; Sales of plastic products; Sales of chemical products (excluding licensed chemical products); Sales of insulation materials; Sales of building materials; Sales of building decoration materials; Sales of high-performance sealing materials; Sales of specialized chemical products (excluding hazardous chemicals); Sales of metal tools; Sales of daily necessities; Retail of sports goods and equipment; Retail of kitchenware, sanitary ware, and daily necessities; Retail of pet food and supplies; Toy sales; Needle textile sales; Wholesale of textiles, clothing, and household goods; Retail of arts and crafts and collectibles (excluding ivory and its products); Sales of Class I medical devices; Sales of Class II medical devices; Sales of mechanical and electrical equipment; Import and export agency (except for projects that require approval according to law, conducting business activities independently based on the business license in accordance with the law)

Dongying Jinxiu Petroleum Machinery Co., Ltd (JX PETRO) was founded in 2005 with registered capital of RMB 50, 000, 000 Yuan in Shengli Oilfield, the oil equipment hub of China. JX Petro is a professional manufacturer and supplier of petroleum drilling and production equipment with API certification.

Founded in 2016, Jiangxi Suneng Electric Co., Ltd. is a leading manufacturer and supplier of LV and MV overhead line fittings, Insulation Piercing Connectors (IPC), Anchor Clamps, and power distribution components. Over the past decade, we have grown into a comprehensive OEM/ODM provider integrating mold design & R&D, plastic component production, metal processing, and electrical fittings manufacturing.

Alita air Pneumatic is a well known manufacture of pneumatic equipments in the world market. Alita Air Pneumatic is specialized in producing actuators pneumatic cylinder, control components solenoid valves, air preparation units, hose and fittings. Which are widely used in the automotive, machinery and manufacturing, metallugy, electronics, environmental protection, light and textile, ceramics, medical equipments, food and packaging automatic industrial fieldes.

Dongying Lake Petroleum Technology Co., Ltd (Lake Petro) is a one-stop oil service company with 15 years of work experience in oil and gas fields. We have served over 300 clients in over 30 countries and regions, involving oil and gas, water wells, mining, geology, oceanography, etc. We commit to provide the best products and services to our customers worldwide.

Wei Networking Accessories Co., Ltd. Was established in 2025, located in Ningbo city, Zhejiang. We are an innovative company having good ability to design, manufacture networking accessories By focusing on "Quality First, Customer Oriented", We dedicate to provide our customers with professional, practical and excellent services.

Shanxi DongHuang Wind Power Flange Manufacturing Co., Ltd. Located in Dingxiang Forging Industrial Zone, Shanxi, China, is dedicated to the Manufacturing and Exporting, Studying and Marketing of big-sized steel Flanges, Ring and Square Forgings, Accessories and other related elements for various industries involving Basic industries, Renewable Energy, Wind-Mill Plant, Oil & Gas Industries, Onshore, Offshore, Refinery, Petrochemicals, Water & WWTP, Food Processing Industries, Power & Shipbuilding Industries, Automotive, etc...We have the Representation and Authorization of Distribution of prestigious Manufacturers, leaders in the World Market that have the most demanding Certifications and Approvals of international organizations, in charge of accrediting the compliance of International Standards in the different processes, procedures, materials, testing, testing, storage, delivery and after-sales service of the manufactured products, in order to provide our Clients with reliable High Quality materials that provide Safety and Integrity in their Projects. Flanges covers Weld Neck, Slip On, Threaded, Lap Joint, Socket Weld, Blind, Orifice, Loose, Plate, Oval, Wind Power Flange, Tube Sheet, other Customized Flanges.

Reliance Trenchless Technology (RTT) is a joint ownership formed by three specialized enterprises: Qingdao Xinya Environmental Technology Co., Ltd., Wenzhou Wantuo Pipeline Equipment Co., Ltd., and GNLC Construction Machinery Co., Ltd. This collaboration brings together the unique strengths of each partner, creating a synergistic platform that covers key segments of the trenchless technology industry. By integrating their respective expertise, RTT aims to provide comprehensive and high-quality solutions for global pipeline maintenance and rehabilitation needs.

Wenzhou Angrui Machinery Co., Ltd. is a professional manufacturer and exporter dedicated to the design, development, and production of high-quality pneumatic components. Our main product lines include pneumatic fittings, PU and nylon tubes, air cylinders, solenoid valves, air source processors, and a wide range of other pneumatic accessories that are widely used in industrial automation, packaging, electronics, textiles, automotive, and other manufacturing sectors.

Ningbo Dongheng Sealing Co., Ltd develops and produces all kinds of sealing materials and products, our factory produce all kinds of seals, such as metal gaskets like spiral wound, ring joint, double jacket, kammprofile, solid metal gaskets, and non-metallic gaskets, like high-strength graphite gasket, PTFE gasket, graphite composite gasket, non-asbestos gaskets. And also involves in trading PTFE tape, ceramic packing, graphite packing, PTFE packing, PTFE graphite packing, Aramid PTFE packing, and other material packings. Ningbo Dongheng is currently in a sealed area of advanced technology products are PRO - widely used in mechanical, chemical, metallurgy, electric power, shipping, food, aerospace, medicine, electronics and other industries. The company not only has a large number of customers in China, but products are also exported to overseas.

Zhongde (Beijing) Machinery Euipment Co., Ltd is a high technology enterprise with scientific research and professional manufacture. There are engineers and technicians in our company. While our company is complete in equipment and facilities and perfect in testing and inspecting measures.

Since its establishment in 1997, Qingdao HNA Oilfield Equipment Manufacturing Co., Ltd. Has been on a remarkable journey. Initially, a small but passionate team, we were dedicated to the oil and gas equipment manufacturing.

Mo Ding Building Materials Co., Ltd., founded in 2011, is specializing in building materials, develops and produces high-performance, eco-friendly solutions, including PVC and aluminum drainage systems, wall and ceiling panels, stair handrails, fencing,   decorative accessories, metal roof tiles and other protective/ inslulation wall panels. The company is dedicated to providing durable, reliable, and visually appealing products for residential, commercial, and industrial use worldwide.

Jiangsu Deenpu Petrochemical Machinery Co., Ltd is located in China Petroleum equipment manufacturing base in yancheng city private industrial park, Jiangsu. Major Products: Blowout preventer and accessories; Choke and kill manfold; Choke and Kill Hose; Control Panel; Wellhead & Christmas Tree; Valves; Test Pump; Bop Control Unit; Union/ Swivel Joint/ Fitting; Flange; Spool; Packing Elastomer;

GPE OIL Machinery Co., Ltd was founded in 2005. We specialize in the production of API 6A valves, Christmas trees, API 16A blowout preventers, API 5DP drill pipes, and other products. We have 12 professional and technical personnel, 45 production workers, 13 professional inspection personnel, 14 professional sales personnel, 5 professional service personnel, 50 large-scale professional processing equipment, more than 40 professional testing equipment, and a plant area of more than 40000 square meters. In 2015, we set up a branch in the United States, expanded its sales share in North America, and its product quality was recognized by international well-known oil companies, and established a long-term and stable cooperative relationship. The company adheres to the principle of "customer first, quality first". The company enjoys a good reputation for product quality and delivery time. Our vision is to become a world-class oil equipment supplier. Our mission is to provide customers with the best oil equipment. We are willing to fight for it all our lives.

NINGBO SMART PNEUMATIC Co., Ltd is a professional and experienced manufacturer specializing in high-end pneumatic components, mechanical accessories, and non-standard customized pneumatic solutions. With over 10 years of focused industry experience, our products have been exported to more than 60 countries worldwide, winning long-term trust and stable cooperation from global clients across automation, machinery, and industrial manufacturing fields.

Hebei Xukang Meter Manufacturing Co., Ltd. (Tianjin U-ideal Instrument Co., Ltd. ) is a professional supplier and manufacturer with over two decades of experience.

Wenzhou Forever Classic(Fosic) Technology Co., Ltd. is professional in research, developing, producing and sales of all sots of pneumatic(Electric) actuator, pneumatic(Electric) ball valve, pneumatic(Electric) butterfly valve, control valve, hydraulic actuator, hydraulic ball valve, hydraulic butterfly valve and other automatic valves etc,

Jiangsu Solid Machinery Manufacturing Co. Ltd located in Jiangsu Huaian Industrial Park, Specialized in petroleum machinery production and manufacturing, focus itself on researching & developing, manufacturing, sales and services. Our products cover in many fields, such as BOP, Manifold, Wellhead, X-mas tree, Casing head and Spool, Tubing head and Spool, FC Gate valve, WKM Valve, Mud Valve, Safety Valve, BSO valve, Choke valve, Goat head, Tee and Cross, Spacer spool, Many kinds of Flanges, Nipple, Union and other wellhead spare parts.

Wenzhou Yiyu Sealing Material Co., Ltd. is situated in No. 1509, Tianzhong Road, Gaoxin Zone, Yongqiang, Wenzhou City, enjoying convenient transportation and communication networks. Our workshop covers an area of 20, 000 square meters with thirty skilled technicians and eight engineers. Our products are widely applied in petroleum processing, oil refining, electricity generated by firepower, textile and other light industries, pharmaceuticals, nature gas pipelines, valves, flanges as well as many others.

We provide a variety of indoor and outdoor customized fiber optic cables, OPGW cable, drop cable, patch cord, pigtail, optical coupler, PLC splitter and other passive components.

We Xiamen Qishine Industry Co., Ltd. is dedicated to supplying extensive range of Pipe, Valve, Flange, Pipe Fitting, Fastener, Gasket and related spare parts for oil, gas, petroleum industry service. And we offer Solar Power Supply System, such as Photovoltaic Panel in New Energy Field. Qishine. En. Made-in-China. com is our homepage, you are welcome to login for more details.

Henan forging emperor industry Co., Ltd. is located in luoyang, China. Luoyang, the ancient capital, is a world famous historical and cultural city. It is also an important industrial city in China. Many well-known national scientific research institutions are established here, providing key technical support and services for the development and improvement of the industrial chain. The main business of our company is industrial product design, auto parts design and production, other mechanical parts design and production, titanium alloy material and its products research and development production, diamond products research and development production, the company has a complete mechanical parts design and production process supporting process, is a professional machinery parts supplier.

Shenzhou City Sanshi Rubber Company 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, plastic.

Wenzhou Zhenghai Sealing Co Lid is located in Wenzhou Binhai Industrial Zone, Adiacaent to Wenzhou airport, the trafic is veryconvenient. Companies specialzing in the production of metalic ring gasket (oval gasket, octagon gasket and the lens