api threading casing coupling30+ factories verified

HONGKONG EASTLONG TECHNOLOGY Co., Limited We are mainly engaged in the sales of tubing coupling, casing coupling, pup joints, tool joints, and so on. Our factory is located in Henan, China. We have more than 15 years of experience in production, We have the ISO 9001 Quality Control Certificate, API - 5CT Certificate.

Goldenman Petroleum Equipment Co., Ltd. is proudly situated in the picturesque oilfield city of Dongying, nestled in the vibrant Shandong Province of China. Over the course of 18 years in operation, Goldenman has not only solidified its presence in the industry but also established itself as a leading manufacturer and supplier of premium petroleum equipment. We boast our own state-of-the-art factories, where we specialize in crafting an extensive range of drilling strings, valves, Blowout Preventers (BOP), cementing tools, and various other accessories essential for oil drilling rigs. Each of our products is meticulously crafted to adhere to the stringent standards set by API (American Petroleum Institute) and ISO (International Organization for Standardization) certifications, ensuring unparalleled quality and reliability.

Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd. Was founded in 1999, mainly engaged in oil pipes and pipe fittings, oil special drilling and production tools and oil automation equipments. The company is named as national integration and standard implementation enterprise, a national science and technology-based small and medium-sized enterprise. With honors of"Henan enterprise technology center", "Henan postdoctoral innovation practice base", the company hold 35 senior engineers, engineers and technicians, and has successively obtained ISO9001 Quality system certificates, API 5CT certificate authorized by American Petroleum Institute and BV Quality supplier evaluation certificate issued by company of France. Owing more than 30 independent intellectual property rights, forming an industrial chain integrating design, development, manufacturing, testing and experiment of numerical control automation equipment for petroleum machinery products, which can meet customers' demand for products Full cycle service.

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.

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.

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.

Guangzhou Kingmetal Steel Industry Co., Ltd., is an Industry Group Company. It is a professional company in designing, producing and selling steel pipe, pipefittings and prefabricated house. We have our own big factories with modern machine line to make high quality products, which is mainly to be exported to oversea markets.

Restructured from SINOPEC in 1997, Puyang Zhongshi Group Co., Ltd has 18 years manufacturing experience of petroleum machinery products till now, we have competitive prices of our main products of casing accessories like bow spring centralizer, solid rigid centralizer, float equipment, cementing plug etc.

As a professional exporter specializing in oil drilling tools and equipment, our company has been deeply engaged in the global energy equipment supply chain since its establishment. We are committed to providing high-quality, reliable oil drilling tools and equipment to customers worldwide, covering a comprehensive range of products such as drill bits, drill pipes, wellhead equipment, drilling rig components, and auxiliary tools for oil extraction. These products are manufactured in strict accordance with international industry standards and have passed multiple quality certification systems, ensuring stable performance and long service life in harsh oilfield operating environments.

Deyi valves is a leading supplier and research for stainless steel sanitary valves and pipe fittings.

Shijiazhuang Jimai Machinery Equipment Technology Co., Ltd is a large-scale professional manufacturer of drilling rigs and water well rigs in Hebei Province, China. It includes 5 series and more than 50 kinds of products. The leading products are: XY series core drilling rigs, JM series water well drilling rig, casing drilling series, as well as mud pumps, drill pipe series, etc.

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;

Union Steel Industry Co., Ltd as member of United Steel Industry Group, specialized in steel pipe and pipe fittings designing, manufacturing, stocking and exporting in China. As one of the leading manufacturer of steel pipe products in China, Union Steel Industry Co., Ltd are committed to providing one-stop service to customers around the world.

Permanent Steel Manufacturing Co., Ltd has been committed to being a major supplier of quality kinds of carbon steel pipe, stainless steel tube, hollow section, casing pipe, numerous types of piping equipments including Bend, Cap, Coupling, Elbow, Reducer, Stub End, Tee, Olet, Joint, Gasket, etc. As a factory, which specializing in the production, processing and sales of various steel pipes and pipe fittings size enterprises, headquartered in Hunan, the production base is located in Shandong and Tianjin.

Tianjin Boer King Steel Co., Ltd. Locates in the Shuang Gang industrial zone of Jinnan district 36km away from tianjin port. 6km away from tianjin airport, 40km away from train station.

Huludao Boyu Petroleum Machinery Co., Ltd. Huludao Boyu Petroleum Machinery Co., Ltd. (Boyu Petro), established in 1996, is located in the Dayushan Pump Industry Park, Lianshan District, Huludao City, Liaoning Province, China. The company spans a total area of 20, 000 square meters, with a building area of 9, 000 square meters. Our Main products include bucking unit/torque machine, hydraulic makeup and breakout machine, steel pipe hydrostatic testing machine (hydro tester), straightener machine (oil tubing, drill pipe, steel pipe), cleaning machine, pipe end facing and beveling machine, drifting machine, automatic pre-tightening and bucking machine set, hydraulic jar tester, transmission lines (load table), CNC threading lathe, etc

Best-all Petro is located in Dongying City, which is famous for Shengli Oilfield. It is the largest petroleum equipment manufacturing center in China. Best-all Petro is a professional manufacturer of mud pump spare parts. Our main products are: Bi-metal cylinder liner, ceramic cylinder liner, hydraulic cylinder, piston, valve assembly, crankshaft assembly and other mud pump spare parts. Our products are not only widely used in the domestic market such as Shengli Oilfield, but also exported to Central Asia, the Middle East, Southeast Asia, North America, South America and other countries in the world.

Tianjin Youfa International Trade Co., Ltd. is the subsidiary of Tianjin Youfa Group. As one of the windows for international business, we mainly focus on exploring overseas markets as well as developing and offering service for major domestic clients. Tianjin Youfa Group is a comprehensive steel-based enterprise, the business includes steel-making, steel strip, straight seam welded pipe, galvanized pipe, rectangular pipe, spiral pipe, plastic inner-lined pipe, seamless pipe, covered electrode, so on and so forth. The annual integrate production capacity amounts to 7.5 million tons. Since 2006, we have been one of the leading corporations in Chinese Top-500. What is more, Youfa Group is the largest straight-seam welded pipe manufacturer in China. In 2008, "YouFa" Brand was regarded as the "Well-known Chinese Trademark" by Trademark Office State Administration for Industry &Commerce of the People's Republic of China. Meanwhile, we are the first-class supplier for CNPC, Sinopec and some big relevant companies. So as to adapt to the overall-developing strategy, at the beginning of 2010, YouFa Group and its subsidiaries founded SIANO(Beijing) Steel Co., Ltd, which is responsible for the import &export business, building business contact with some influential companies and providing the after-sale service for our customers.

Cangzhou Yulong Steel Co., Ltd. is located in Lijiapu Industry, known as the "Capital of Pipe Fittings in China". It is a comprehensive enterprise integrating research and development, PRO- duction, sales, quality inspection, packaging, and trans- portation.

Shandong HQ Precision Technology Co., Ltd. is located in Yishui, Shandong Province, China. It is a professional R&D enterprise of medium and large lathe series, a national high-tech enterprise and a civil-military integration enterprise in Shandong Province. Our factory was founded in 1952 and was a designated pipe thread lathe manufacturer of the former Ministry of National Machinery Industry. It was restructured in 2013 and we started to export recent years. At present, the company covers an area of 200 000 square meters, fixed assets of more than 600 million yuan, more than 300 employees, with more than 50 engineers and technicians.

Shanghai ALI-MAMA STEEL TRADING COMPANY. Known as Ali-Steel, pioneered in 2020, based in Shanghai, ALI-STEEL is a professional one-stop steel products supplier. Our business philosophy is"keep improving & win-win cooperation". We furnish best steel and strict quality management, perfect after-sales services, reasonable product prices, good customer reputation as we have faith in integrity of the our business philosophy. We realize the common development of customers, employees and enterprises. We have won trust and support of customers from all over the world. Selling steel all over China and mainly exported to South America, Southeast Asia, Middle East, South Africa, Australia and many more. Our company's main products: VARIOUS CARBON STEEL AND STAINLESS STEEL PIPE AND FITTING, STEEL CONSTRUCTION FABRICATION AND PRODUCTS, Metal including ERW steel pipe, LSAW STEEL pipe and SSAW STEEL pipe, Seamless steel pipe and galvanized Zinc steel pipe, square and rectangular steel pipe, steel plates and steel billets.

Hunan Shunfu Metal Materials Co., Ltd. is a professional company that mainly sells high-quality petroleum steel and provides heat treatment and machining services.

Shanghai Baori Steel Industries Co., Ltd. is located in Shanghai, the economic center of China, near the Gold Coast. It is currently one of the well-known steel service and leading enterprises in China. The company has a stable development team, and its business performance and comprehensive strength have always maintained growth. Since its establishment ten years ago, the company has integrated steel rolling, annealing, production, retail, shearing processing, logistics and distribution, international trade, and professional services, and is a large-scale enterprise with high reputation for comprehensive operation at home and abroad. We mainly deal in wear resistant steel, alloy steel, , API5CT Tubing Casing with excellent quality, quality assurance, and professional service. We provide professional products and services for domestic and foreign customers. Our company's service tenet is always customer-centric and has won a lot of praise.

Qingdao Megasoar Machinery Co., Ltd. Was established in 2018. Its cooperative factory is located in Shengli Oilfield, Dongying, Shandong Province, and has 10 years of experience in the foreign trade export of petroleum machinery. As a recognized industry leader in domestic China, it is committed to develop,  manufacture and supply a variety array of oilfield products categorized as drilling equipment, production equipment, tubular goods, pipelines, chemicals and oilfield services. Technical innovation is always the focus for this National Hi-tech Enterprise and it owns 120 odds national patents, of which 18 are invention patents.  Years of sales efforts have made our products blossoming in nearly every domestic oilfields. Products have been distributed to more than 30 countries such as USA, Canada, Argentina, Cuba, Russia, Kazakhstan, Uzbekistan and Indonesia etc. Three Quality Management Systems attained, such as ISO9001: 2000 Quality Management System, ISO14001 Environmental Management System and OHSAS18001 Occupational Health and Safety Assessment Series, are always integrated throughout the company's daily operation and processes. 16 products such as drilling rig, casing, tubing, drill pipe, pumping unit, sucker rod, sucker rod pump and composite pipe are licensed to use API 4F, API 7K, API 8A, API 5CT, API 5D, API 11E, API 11B, API 11AX and API 15HR monograms. Our strategic goal is to become a national and then an international petroleum equipment supplier and to offer products and solutions for any challenging customer demand. As a recognized industry leader in domestic China, it is committed to develop,  manufacture and supply a variety array of oilfield products categorized as drilling equipment, production equipment, tubular goods, pipelines, chemicals and oilfield services. Technical innovation is always the focus for this National Hi-tech Enterprise and it owns 120 odds national patents, of which 18 are invention patents.  Years of sales efforts have made our products blossoming in nearly every domestic oilfields. Products have been distributed to more than 30 countries such as USA, Canada, Argentina, Cuba, Russia, Kazakhstan, Uzbekistan and Indonesia etc. Three Quality Management Systems attained, such as ISO9001: 2000 Quality Management System, ISO14001 Environmental Management System and OHSAS18001 Occupational Health and Safety Assessment Series, are always integrated throughout the company's daily operation and processes. 16 products such as drilling rig, casing, tubing, drill pipe, pumping unit, sucker rod, sucker rod pump and composite pipe are licensed to use API 4F, API 7K, API 8A, API 5CT, API 5D, API 11E, API 11B, API 11AX and API 15HR monograms. Our strategic goal is to become a national and then an international petroleum equipment supplier and to offer products and solutions for any challenging customer demand.

SHANDONG LIGHT FIR MACHINERY Co., Ltd (LIGHT FIR) is located in Shengli Oilfield, Shandong Province, China.

Shandong Jorsen Machinery Co., Ltd. Has over 20 years of experience in manufacturing machining equipment. The company covers an area of 50, 000 square meters and boasts over 100 machines. Each machine undergoes 24 inspection processes and 48-hour continuous operation testing before leaving the factory to ensure stable quality control.

We supply from China machine tools and their accessories for metal cutting and metal forming industries. Our products include lathes, milling machines, drilling machines, grinding machines, sawing machines, boring mills, CNC machines etc. And their accessories such as rotary tables, dividing heads, lathe chucks, centers, NC turrets, hydraulic steady rests, etc. Benefitting from long-term successful cooperations with many competitive domestic machine tool manufacturers and consistently devoting all our efforts to customer services, we have been supplying our products to markets throughout the world including North America, South America, Europe, Australia, Asia, Africa and the Middle East, and enjoy a good reputation among our customers.

Shandong Zhuosheng Co., Ltd. Has a large inventory of products - carbon steel, galvanized, aluminum zinc, stainless steel, ductile iron pipes, oil sleeves, I-beams, angle steels, channel steels, steel rails, steel bars, steel sheet piles, tinplate, etc., which can meet your various needs.

Shanghai Cuyu Trading Co., Ltd. Specializes in the manufacturing of oil and gas drilling equipment.

After 20 years of development, HengAn Weiye Steel Group has become a leading enterprise in the industry with is own brand and several patents. In year 2022, Hunan HengAn Weiye Metal Products Co, Ltd was established to pave the way for extended processing and international trade of metal products. The company has over 10000 tons of stock and processing bases in Guangzhou, Tianjin, Hubei and Shandong, Jiangsu and Zhejiang.