What payment terms do you accept?

We accept LC, T/T, PayPal, and Western Union for payment transactions.

What are the available thread types?

We offer NU, EU (tubing), STC, LC, and BTC (casing) thread types.

How are the products packed for shipping?

Packing includes cartons, wooden cases, wooden pallets, or customized customer requirements.

API 5CT Tubing/Casing X-Over Couplings1.9-20

Name: API 5CT Tubing/Casing X-Over Couplings1.9-20
Brand: Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
SKU: 2070572422

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

US$23.65

50 Pieces

Sample price:US$30.00/piece.Request sample

Product profile

Certification

ISO 9001:2000, ISO 9001:2008, API 5CT

Name

API 5CT Tubing/Casing X-Over Couplings1.9-20

Thread

Nu EU LC Sc Bc

Model NO.

1.9-20

Grade

K55 J55 L80 N80 P110

Usage

Oil Pipe

Length

8inch 12inch

Trademark

EASTLONG

Origin

Puyang China

HS Code

8431431000

Production Capacity

500 PCS One Day

Key features

API 5CT Certified Quality: Certified by API 5CT, ISO 9001, ISO 14001, and ISO 45001 for reliable performance.

Wide Grade Selection: Available in J55, K55, L80, N80, P110, C90 to meet diverse oil pipe requirements.

Custom Thread Solutions: Supports NU, EU, STC, LC, BTC threads with specific customer drawings or materials.

Superior Sealing Property: Designed with reducing coupling features to ensure excellent sealing performance.

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

Fast Delivery Time: Average lead time within 15 workdays for both peak and off-season orders.

Global Export Experience: Products exported to 31 countries including USA, Russia, and UAE with strong support.

Comprehensive Service Chain: Integrates design, R&D, manufacturing, testing, and technical services for full cycle.

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.