api 5ct lc round threads casing coupling20+ 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.

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.

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.

Zhonghe Steel (Tianjin) Co., Ltd is committed to integrate steel resources in China and serve the global steel market. Our company has more than 10 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national famous steel enterprise before. In the aspect of resources and information, we have established cooperative relationship with nearly hundred enterprises, either state-owned or private owned in China. What's more, we have built long, deep and close business relationship with dozens of steel company, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want.

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 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.

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.

WE BOER KING STEEL GROUP(Tianjin Boer King Steel Import and Export Co., Ltd )LOCATED IN SHUANGGANGINDUSTRIAL ZONE, JINNAN DISTRICT, TIANJIN, China. 30KM AWAY FROM TIANJIN XINGANG PORT, 8KM AWAY FROM TIANJIN AIRPORT.

UPET GROUP consist of following companies: Upet Oilfield Equipments Co., Limited, Upet Industry Co., Limited, Weifang Youpat Machinery Equipments Co., Ltd and Qingdao Uelion International Trade Co., Ltd.

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.

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.

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.

TIANJIN TIANCHENG IMPORT AND EXPORT Co., Ltd&TIANCHENG METAL MATERIAL (TIANJIN)Co., Ltd is one of Tiancheng Steel Subsidiary corporations since2008, TIANJIN TIANCHENG IMPORT AND EXPORT Co., Ltd&TIANCHENG METAL MATERIAL (TIANJIN)Co., LTDis Established on March 2017 &2022and Located in Tianjin, and help our factory to export steel & Tubes& Nickel Alloy & Copper Tube& Stainless Steel Tube & Fitting to other country, and enjoy government policy better, We establish Home and Living Chair& Table new business with our brother company in 2020;

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.

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.

SHANDONG BEYOND PETROLEUM EQUIPMENT Co., Ltd. is established on request of customer and aimed to supply best product and service for the customer. It focuses on to supply best solutions for the overseas oilfield customer on equipment spares maintenance and supply.

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.

Shandong Huazhu metal manufacture Co., Ltd. is located in Shandong province, adjacent to the important steel machinery industry base in north China. Rich experience in steel manufacturing, engineering and trade. We specialize in all kinds of prefabricated/processed building materials and related services. Our main products include corten steel plate(weathering resistant steel plate)/galvanized steel plate/stainless steel plate/stainless steel pipe/galvnized steel coil galvanized steel pipe/lead sheet/galvanized retangular steel pipe/prepainted galvanized steel coil/corrugated steel sheet, etc. There are thick wall seamless steel pipe/alloy seamless steel pipe/welded steel pipe. In addition to steel materials, we also provide stamping, welding. CNC turning, bending wire cutting laser cutting. The company covers an area of 1600 square meters, more than 50 existing employees, annual production capacity of 300000 Tons, we can customize metal products according to drawings and samples. High quality and stable quality, reasonable price, punctual payment time, thoughtful and efficient service, so that our products sell well in the United States, Australia, South Korea, Turkey, Saudi Arabia, India, Russia, America Benstein, Thailand, Myanmar, Vietnam, Philippines, Chile and other countries and regions. We are committed to continuously improve product quality and service level, for more customers to serve, make Huazhu become the preferred supplier of steel products.

JOHO STEEL Co., Ltd, founded in 1988, is a steel group which has integrated steel production, processing and trading into one.  We specializes in manufacturing carbon seamless steel pipes, boiler tube/heat exchanger tube and pipes for special uses,  besides, it also provides anti-corrosion services and pipes fittings processing for major engineering construction projects. Our products are widely used in the field of oil, gas & fluid transmission, construction projects, chemistry, pharmacy, electricity,  agriculture and metalwork etc.

Jinan Taigang new material Co., Ltd is a professional steel company engaged in the research, development, production, sale and service. It had five branch companies. Our annual sales nearly one billion, about 280, 000 tons steel, It is located in Jinan with the convenient transportation access. In line with the development concept of quality conquer the world, service achievement future. We dedicate to strict quality control and thoughtful customer service, and our experienced staff members are always available to discuss your requirements and ensure every customer satisfaction. Our main products include PPGI, galvanized steel, steel plate, round bar, steel pipe, Stainless steel product, angle bar, steel pile, H beam, I beam, angle, Channel flat steel etc. With double guarantee of service and management system. Main market distributes in North America, South America, Africa, Southeast Asia as well as Oceania. We have established long-term and win-win partnership with many large steel manufacturers, such as Baosteel, Laiwu Steel, Rizhao Steel, Handan Iron and Steel, Angang and Maanshan Iron and Steel. We always foucesed on the intergration of reasources, in line with the concept of win win cooperation. Sincerely wish to build a long and regular business with you forever.

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.

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

Oasis Oil Tools Co., Ltd, is a famous manufacturer which integrates the research and development, design, manufacture and sell water well screens/johnson screens, wire wrap screen, wedge wire screen, pipe based well screens, oil well screens and sand control well screens, bridge slotted well screens, perforated pipe (base pipe), gravel pre-packed well screens, wedge wire screens, passive water intake screens etc. Water, oil and gas well filtering products as well steel tubes and pipes and industrial parts.

Liaocheng Huajian Steel Co., Ltd is located in Liaocheng, Shandong Province, which is known as "the Water City of Jiangbei", and our company was established in the year 2012, and the registered capital is 101, 0000 RMB, we are a modern private enterprises which are specialized and exporting steel materials in China and win high reputations from our customers.

China RARLON GROUP LIMITED is an import and export company with more than ten years of experience, focusing on the trade and

Zhengzhou Angde Machinery Co., Ltd. is located in Zhengzhou City, Henan Province. Our company is a manufacturer and trader specialized in the research, development and production of specializing in the manufacture and export of

Tianjin Shengteng International Trade Co., Ltd, which is located in the steel production base of Yangjiayuan Village, Tianjin city, China. Products mainly including PV Mounting systems, Scaffolding steel prop, Galvanized steel pipe, ERW steel pipe, Square/Rectangular steel pipe, Seamless steel pipe, Galvanized steel coil/sheet, Galvanized Corrugated sheet, weldinng all kinds of pet iron cage, steel wire, iron nails, and support OEM service.