K55 Oilfield Coupling Pipe Fittings

Name: Pipe Coupling API 5CT 5dp 5e/J55/K55 Oilfield Coupling Pipe Fittings
Brand: Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
SKU: 2143011602

Tianjin, ChinaTianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.

US$20.00

1 Piece

Sample price:US$100.00/piece.Request sample

Product profile

Certification

ISO 9001:2008, API 5CT

Transport Package

Tray

Specification

1100*1100*1000

Production Capacity

500000

Key features

Comprehensive Size Range: Tubing couplings from 1.9 to 4.5 inches; Casing couplings from 4.5 to 20 inches.

Multiple Thread Types: Available in NU, EU, STC, LTC, and BTC thread configurations.

Diverse Steel Grades: Manufactured in J55, N80, L80, and P110 grades to meet specific needs.

Standard Compliance: Fully meets API Specification 5CT and ISO 9001:2008 certification.

Surface Treatment Options: Offers whole phosphating or inside phosphating with outside coating.

Fast Production Lead Time: Average lead time within 15 working days for both peak and off-season.

Flexible Payment Terms: Accepts T/T, Western Union, LC, PayPal, and other standard methods.

Defect Replacement Policy: Provides replacement or credit for any defective items received.

Company profile

Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.Tianjin, China

Business Type: Manufacturer/FactoryExport Year: 2019-06-07Nearest Port: TIANJIN PORT, QINGDAO PORT, SHANGHAI PORTAverage Response Time: ≤15hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CIF, DDP

AI-Powered supplier vetting

SummaryTianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd. is a China-based manufacturer founded in 1999, focused on oil pipes, pipe fittings, drilling and production tools, and petroleum automation equipment. The supplier reports ISO 9001 and ISO 14001 certification, 10 production lines, 11–20 years of R&D engineer experience, and 11–20 quality-control staff. It states that its capabilities cover design, development, manufacturing, testing, experimentation, and full-cycle service, supported by more than 30 independent intellectual property rights and an intelligent workshop. The company exports to broad global markets and reports export activity since 2019, but the provided information does not identify specific customer cases or independently verify the stated capabilities.

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and a limited company based in Tianjin, China. Its stated business focuses on petroleum equipment, oil pipes, pipe fittings, drilling and production tools, and automation equipment, matching the listed industrial product categories.

CertificationsThe supplier reports holding ISO 14001 and ISO 9001 management-system certifications. These are explicit certification records in the provided data, although certificate scope and validity dates are not given.

R&D capabilityThe supplier reports more than 30 independent intellectual property rights, an intelligent workshop, numerical-control automation equipment capabilities, an e-commerce platform, and recognition as a national science and technology-based small and medium-sized enterprise. These statements provide explicit evidence of innovation-related infrastructure and activity.

Production capacityThe supplier describes an integrated chain covering design, development, manufacturing, testing, and experimentation; operates 10 production lines; and has an intelligent workshop. It also reports oil equipment and pipe-related manufacturing experience, with stated order fulfillment within 15 workdays in both off-peak and peak seasons, supporting a positive production-capability assessment.

Customization capabilityThe stated full-cycle integration of design, development, manufacturing, testing, and experimentation, together with numerical-control automation equipment and an intelligent manufacturing model, indicates the ability to develop and manufacture tailored petroleum equipment. However, no specific customized project examples, engineering-change process, or minimum-order requirements are provided.

Product Q&A

Q:How can I place an order?

You can contact us by email about your order details, or place an order online.

Q:How can I pay you?

After you confirm our PI, we will request you to pay. T/T and Western Union are the most usual ways we are using.

Q:What is the order procedure?

First we discuss order details, production details by email or TM. Then we issue you an PI for your confirmation. You will be requested to do pre-paid full payment or deposit before we go into production. After we get the deposit, we start to process the order. We usually need 15-25 days if we don't have the items in stock. Before production has been finished, we will contact you for shipment details, and the balance payment. After payment has been settled, we start to prepare the shipment for y

Q:How do you take care when your clients received defective products?

Replacement. If there are some defective items, we usually credit to our customer or replace in next shipment.

Q:How do you check all the goods in the production line?

We have spot inspection and finished product inspection. We check the goods when they go into next step production procedure.