Are your products ISO certified?

Yes, we are ISO 9001, ISO 14001, and ISO 45001 certified with full quality monitoring systems.

How do you ensure product quality and interchangeability?

We use CNC lathes for single-pass thread processing and have complete testing apparatus for thread parameters.

What are your payment terms?

We accept LC (Letter of Credit) and T/T (Telegraphic Transfer) as payment terms.

Eue Btc J55 N80 Casing Tubing Pipe Coupling

Name: Eue Btc J55 N80 Casing Tubing Pipe Coupling
Brand: Dongying Zhaoxin Industry and Trade Co, Ltd.
SKU: 2081253065

Shandong, ChinaDongying Zhaoxin Industry and Trade Co, Ltd.

US$25.00

1 Piece

Sample price:US$25.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Yes

Warranty

1 Year

Model NO.

EUE BTC

Manufacturing Process

Casting

Surface Treatment

Galvanized

Operation Pressure

Atmospheric Pressure

Material

Alloy

Product Name

Tubing Coupling

Transport Package

Wooden Case

Specification

2-3/8", 2-7/8", 3-1/2", 4" 4-1/2"

Trademark

Origin

China

Key features

Wide Material Range: Available in steel grades J55, K55, N80, N80-1, N80-Q, L80, P110.

Dual Thread Types: Offers both NU (Non-Upset) and EU (External Upset) casing coupling types.

Precise CNC Processing: Threads processed in one pass using numerically controlled lathes for interchangeability.

Comprehensive Testing: Equipped with single testing apparatus for tape, pitch, tooth depth, and profile.

Extensive Size Coverage: Stock sizes range from 2-3/8" to 4-1/2" in multiple grades.

ISO Certified Quality: Certified by ISO 9001, ISO 14001, and ISO 45001 for quality and safety.

Long Warranty Period: All products come with an 18-month warranty coverage.

OEM and ODM Services: Custom manufacturing services available for specific product requirements.

Company profile

Dongying Zhaoxin Industry and Trade Co, Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2014-04-14 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤11.71h CertifiedTerms of Payment: LC, T/T

AI-Powered supplier vetting

SummaryDongying Zhaoxin Industry and Trade Co., Ltd. is a China-based limited company in Shandong that manufactures and processes oilfield tools and equipment. The supplier reports ISO9001:2015, ISO14001:2015, and ISO45001:2016 certifications, a dedicated R&D team, more than 40 national patents, six to ten quality-control staff, and two production lines. It offers downhole tools, cementing tools, wellhead equipment, oil-well packers, tubing anchors, and torque anchors. The company states that it provides research, development, manufacturing, sales, and after-sales service. Export activity is documented since 2014, with markets in South America and Europe, although export sales represent only 11%–20% of total sales. Evidence is insufficient to assess financial credibility, customization capability, or specific customer cases.

Supplier typeThe supplier is a Chinese limited company engaged in manufacturing and processing machinery, specifically oilfield tools and equipment. Its stated activities cover research, development, manufacturing, sales, and after-sales service, indicating a manufacturer rather than only a trading intermediary.

CertificationsThe supplier explicitly reports ISO9000 international quality-system certification and current ISO9001:2015, ISO14001:2015, and ISO45001:2016 certificates. These certifications provide direct evidence of formal quality, environmental, and occupational-health-and-safety management systems.

After-Sales capabilityThe company explicitly states that its business includes sales and after-sales service for oilfield tools and equipment. However, the slices do not describe service coverage, staffing, response times, spare parts, or warranty terms.

R&D capabilityThe supplier reports a practical and experienced R&D team, more than 40 national patents, five years of R&D-engineer experience, and a stated focus on new products and technology. These claims directly support an established innovation function, although no patent titles or technical performance data are provided.

Production capacityThe supplier operates a manufacturing plant of 11,000 square meters, two production lines, and reports one-month order fulfillment in both off-peak and peak seasons. Its listed product scope covers multiple oilfield equipment categories, supporting production capability, although detailed capacity and equipment information is unavailable.