Tianjin Dalipu Oil Country Tubular Goods Co., Ltd.
Tianjin Dalipu Oil Country Tubular Goods Co., Ltd.
🇨🇳 China, Tianjin Shi
200851-100 peopleManufacturer/Trading CompanyTianjin Dalipu Oil Country Tubular Goods Co., Ltd. is a professional manufacturer and trading enterprise established in 2008 and based in Tianjin, China. Specializing in Oil Country Tubular Goods (OCTG), the company operates a 10,000-square-meter facility and maintains a workforce of approximately 50 to 100 employees. The company is a key supplier to major domestic oilfields, including Dagang, Daqing, and Shengli, while maintaining a robust international presence across North America, Europe, the Middle East, and Africa.
The company's core product portfolio includes API 5CT casing and tubing, API 5L line pipes, seamless steel pipes, and specialized drilling equipment such as pup joints, crossovers, couplings, and sucker rods. Their technical capabilities cover a wide range of steel grades, from standard J55 and K55 to high-performance P110 and corrosion-resistant 13Cr and Super 13Cr alloys. They offer various connection types, including STC, LTC, BTC, and premium thread connections, with casing sizes ranging from 4 1/2" to 20".
Tianjin Dalipu is committed to strict quality control, holding certifications such as ISO 9001, API 5CT, and API 5B, while adhering to international standards including ASME, ASTM, DIN, and JIS. As a contract manufacturer and OEM provider, the company leverages strategic partnerships with major steel mills like TPCO and Baosteel to ensure stable supply channels. Their business model focuses on factory-direct sales to optimize costs and provide high-quality, customized solutions for the global oil and gas industry.
OEM manufacturerOffers OEM services for customized brand manufacturing.
Product customizationOffers full customization for design and features.
Patented technologyHolds multiple product or process patents.
Low MOQOffers low minimum order quantity options.
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A234 Wpb/P12/P22/P91 Pipe Fittings Carbon Steel Tee/Stainless Steel/Alloy Steel
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A234 Wpb/P12/P22/P91 Pipe Fittings Carbon Steel Tee/Stainless Steel/Alloy Steel, Find Details and Price about Carbon Steel Tee Carbon Steel Concentric Reducer from A234 Wpb/P12/P22/P91 Pipe Fittings Carbon Steel Tee/Stainless Steel/Alloy Steel - Tianjin Dalipu Oil Country Tubular Goods Co., Ltd$1
Mirror or Satin Pipe Elbow Pemco 90 Degree Stainless Steel Elbow for Staircase Railing
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Mirror or Satin Pipe Elbow Pemco 90 Degree Stainless Steel Elbow for Staircase Railing, Find Details and Price about Stainless Steel Elbow Satin Pipe Elbow from Mirror or Satin Pipe Elbow Pemco 90 Degree Stainless Steel Elbow for Staircase Railing - Tianjin Dalipu Oil Country Tubular Goods Co., Ltd$2Customers
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Certifications
ASME1
ISO 90011
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Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
🇨🇳 China
199911-50 peopleManufacturer/Service CompanyEstablished brand
OEM manufacturer
Custom packaging
Patented technology
Shipments
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Key customer
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Key market
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Description
Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd. is a manufacturer and service company based in Tianjin, China, specializing in petroleum drilling and extraction equipment. Established in 1999, the company employs between 11 and 50 people, including 35 senior engineers and technicians. They are recognized as a national integration and standard implementation enterprise and a national science and technology-based small and medium-sized enterprise, holding honors such as "Henan enterprise technology center" and "Henan postdoctoral innovation practice base." The company operates a factory and offers OEM and contract manufacturing services. Their product portfolio includes API 5CT Tubing and Casing Pipe, Pup Joints, Tubing Couplings, Casing Couplings, Sucker Rods, Sucker Rod Couplings, Drill Pipe, Cementing Tools, Downhole Tools, Casing Centralizers, Crossovers, High-Pressure Elbows, Saw Collars, and Thread Protectors. They possess over 30 independent intellectual property rights and have developed an industrial chain integrating design, development, manufacturing, testing, and experimentation of numerical control automation equipment for petroleum machinery products. Tianjin Dongfanglong is certified with ISO 9001, API 5CT, and BV Quality supplier evaluation. They have expanded their international presence by registering production and sales companies in the Netherlands and actively engage in cross-border e-commerce through their "Dong Fang Yunlong E-commerce Trading Platform," serving markets across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, Eastern Asia, and Western Europe.
Mechanical Packer Oil Well Packer
Tubing Coupling 2-7/8 EU L80-1$4
High-Quality Btc Stc Ltc OCTG Couplings for Energy Sector$20
API 5CT N80 2 3/8" Tubing Coupling for Oil and Gas$20
4-1/2 P110 Ltc Casing Coupling
Reliable Casing Crossover Systems for Optimal Fluid Management$8.88
Durable Tubing Crossover for Enhanced Fluid Transfer Efficiency$11.88
API 5CT Tubing and Casing Pup Joint3-1/2 2-7/8 2-3/8 with Coupling$20.63
High-Quality 2-7/8 Inch Eue Plastic Thread Protectors for Smooth Joints$4.5
High-Quality 2-7/8 Inch Eue Plastic Thread Protectors, Suitable for Joints with Smooth Surfaces and Smooth Threads Produced$0.28
API 5CT Tubing and Casing Coupling Collar 7-5/8 Bc LC Sc with Coupling$65
Innovative Oilfield Couplings for Enhanced Pipe Connection Performance
Tianjin Richsen Oil Equipment Co., Ltd
🇨🇳 China
2001Fewer than 5 peopleManufacturer/Trading CompanyEstablished brand
Own brand
Low MOQ
Industry association member
Shipments
742
Key customer
ELITE INDUSTRIAL
Key market
🇺🇸 United States
Description
Tianjin Richsen Oil Equipment Co., Ltd, established in November 2001, is a comprehensive B2B solution provider and manufacturer based in Tianjin, China, specializing in oilfield equipment. With over 15 years of experience in premium connections, the company operates as both a manufacturer and trading company, offering integral solutions from procurement and marketing to R&D, production, processing, and logistics. They maintain production bases in Tianjin, Shandong, and Liaoning Province, including a seamless pipe mill and two heat treatment lines. The company is ISO 9001 and API 5CT certified, ensuring high-quality standards for its products.
Richsen Oil Equipment's core product line is OCTG (Oil Country Tubular Goods), with a specialization in couplings. They are known for their "Coupling Supermarket" concept, maintaining a large inventory of 100,000 couplings in various steel grades, sizes, and thread types, including Casing Coupling and Tubing Coupling. Their product offerings also include API 5CT Seamless Casing and Tubing Pipes, Drill Pipe (HWDP, Drill collars, Kellys), Machined Pipe (honed and bored hollow bars), and Pipes for Offshore Drilling Platforms. They also supply Thread Inspection Gages and Thread Protectors. The company boasts a modern 1000m2 factory equipped with advanced machinery, including CNC threading machines and NDT equipment, with an annual capacity of one million pieces for couplings. With a global marketing department and a technical team of over 40 senior engineers, Tianjin Richsen Oil Equipment Co., Ltd exports to North America, the Middle East, Southeast Asia, and India, serving global oil companies with products that meet API standards.
OCTG API 5CT Coupling 4-1/2" Ltc J55 Long Thread Casing Coupling 4-1/2" to 20" K55/L80/N80/P110
