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Coupling and Threads for Casing and Tubing

Name: Coupling and Threads for Casing and Tubing
Brand: Dongying Lake Petroleum Technology Co., Ltd.
SKU: 2056208345

Shandong, ChinaDongying Lake Petroleum Technology Co., Ltd.

US$35.00

1 Piece

Product profile

Customization

Available

After-sales Service

Online Guide and Service

Warranty

6 Months

Model NO.

all sizes

Certification

ISO 9001:2015

Power Source

Hydraulic

Operation Pressure

Atmospheric Pressure

Applicable Medium

Mud, Water, Natural Gas, Crude Oil

Structure

API

Material

Alloy

Steel Grade

J55, K55, N80, L80, P110

Manufacturing Process

Forging

Thread Type

EU, Nu, Stc, Ltc, Btc

Connection

Female

Color

Red, Green, White

Transport Package

Standard Export Package

Specification

1.9"-20"

Trademark

Lake

Origin

China

HS Code

843143

Production Capacity

5000PCS Per Month

Key features

API Standard Compliance: Manufactured according to API 5CT and 5B specifications for reliability.

Corrosion Resistance: Treated with phosphating or copper plating for excellent abrasion and corrosion resistance.

Customization Options: Customized couplings available for special requirements like seal-ring or reducing types.

Multiple Steel Grades: Available in J55, K55, N80, L80, P110, and other grades for various applications.

Certified Quality: Products are API and BV certified ensuring high quality standards.

Versatile Thread Types: Offers EU, Nu, Stc, Ltc, Btc, STC, LC, and BC thread types.

Wide Size Range: Sizes range from 1-1/3 inches to 30 inches for tubing and casing.

OEM and ODM Services: Full customization, minor customization, and flexible customization services available.

Company profile

Exhibition ExperienceMulti-language PioneerYears of Export ExperienceCooperated with Fortune 500

Dongying Lake Petroleum Technology Co., Ltd.

Shandong, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 14 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.08h

AI-Powered supplier vetting

SummaryThe supplier demonstrates customization, ODM, and OEM capabilities, with a new product reported in the past year and AutoCAD-based R&D. Quality processes include raw-material traceability, documented inspection instructions, and random finished-product inspection, but only one quality inspector is reported. Service procedures and complaint-handling procedures are documented and followed, although corrective/preventive actions lack written records. Overseas service infrastructure is limited: no overseas warehouse, showroom, agents, or branches, and overseas service coverage is listed as zero. Financial, certification, production scale, and customer-case evidence is insufficient for a definitive assessment. Sustainability and digital-management capabilities appear limited, with no ERP, CRM, SAP, or AI-based management implementation reported.

Supplier typeThe supplier is identified through its capabilities as a professional technical supplier, provides ODM services, and supplies OEM services for well-known brands. This supports classification as a technical manufacturing/OEM-ODM supplier, although the slices do not state a formal legal or industry supplier category.

After-Sales capabilityThe supplier has a clear customer-complaint handling procedure with followed records, and service assessment procedures with written procedures and records. However, it reports no overseas warehouse, showroom, agents, or branches, which limits documented overseas service infrastructure.

R&D capabilityThe supplier reports new products in the past year, ODM capability, AutoCAD use, and professional technical-supplier status. Conversely, it reports zero patents, no private mold design capability, no 3D software design service, no SDK, and no AI, ERP, CRM, or SAP-based digital-management capability, indicating some product-development capacity but limited documented innovation infrastructure.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization, and also reports ODM service availability. This is direct evidence of broad customization capability.

Product Q&A

Q:What certifications do your products have?

We provide API and BV certified products ensuring high quality standards.

Q:Can you provide customized couplings?

Yes, we supply customized couplings according to special requirements such as special-clearance, combination, reducing, seal-ring, and special-bevel tubing couplings.

Q:What steel grades are available?

Available grades include J55, K55, N80, L80, P110, C-75, C-95, H-40, AS-95, and L80-13CR.

Q:What is the warranty period?

The warranty period is 6 months.

Q:What are your payment terms?

We accept LC and T/T payment terms.