What testing reports are included?

We provide Material Test Certificates (MTC), Heat Treatment reports, Dimension Reports, and EN3.1 documents.

What are the size and weight limits?

Sizes range from 1/2 inch to 100 inches, with weights from 0.50 kg up to 20,000 kg.

Do you offer OEM and ODM services?

Yes, we provide both OEM and ODM services to meet specific client requirements.

Spacer Spool

Name: Bop Products API Equipment OEM Drill Thru & Flow Thru Equipment Drilling Spools/Adapter Spools/Spacer Spool
Brand: Shanxi Donghuang Wind Power Flange Manufacturing Co., Ltd.
SKU: 2020439815

Shanghai, ChinaShanxi Donghuang Wind Power Flange Manufacturing Co., Ltd.

US$50.00-3,000.00

1 Piece

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

Processing Object

Metal

Molding Style

Forging

Model NO.

FGMG

Molding Technics

Open-Die Forging

Application

Machinery Parts

Material

Carbon Steel

Heat Treatment

Normalizing

Surface Treatment

Polishing

Forging Tolerance

+/-0.5mm

Standard

ASTM

Certification

ISO 9001:2015

Standards

API 6b, API 6c, API 16A

Lead Time

10-25 Working Days

Stamping

Available

Testing Report

Mtc, Ht, Dimension Report, En3.1

Applications

Oilgas Pipe System Connection

Transport Package

Plywood Case

Specification

TUV/ PED 2014/68/EU

Trademark

DHDZ

Origin

China

HS Code

73261910

Production Capacity

10000 Ton/Year

Key features

Dual Certification: Certified to ASME/ASTM SA/A182 and EN10222-5 or DIN17440 standards.

Wide Material Range: Available in Carbon, Stainless, and Alloy steels including 4130, 4140, and 304L.

Customization Options: Customized standards, dimensions, and designs available with drawings.

Extensive Size Range: Sizes from 1/2 inch to 100 inches and weights up to 20,000 kg.

Multiple Flange Types: Offers Flat, Blind, Slip On, Weld Neck, Threaded, and Socket Weld flanges.

ISO 9001:2015 Certified: Manufacturing process certified under ISO 9001:2015 and TUV standards.

Comprehensive Testing: Includes MTC, Heat Treatment, Dimension Reports, and EN3.1 certificates.

OEM/ODM Services: Full OEM and ODM services available for custom manufacturing needs.

Company profile

Shanxi Donghuang Wind Power Flange Manufacturing Co., Ltd.

Shanghai, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2001-06-01 CertifiedNearest Port: Tianjin Port, Shanghai Port, Qingdao PortAverage Response Time: ≤15h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryShanxi Donghuang Wind Power Flange Manufacturing Co., Ltd. is identified as a Chinese manufacturer of steel flanges and forgings, with operations associated with Dingxiang, Shanxi, and a Shanghai head office. The supplier reports ISO9001:2015, PED, and TUV-related certifications, five production lines, 6–10 quality-control staff, and annual steel forging and flange productivity of 5,000 tons. It offers standardized and customized products, including multiple flange types, rings, shafts, blocks, disks, and other forgings. Export activity reportedly began in 2001, with exports representing 41%–50% of sales and customers in more than 15 countries. Evidence supports production, certification, customization, and international customer experience. However, after-sales capability is only described as an intended quality-related process, innovation evidence is limited to one year of total R&D engineer experience, and financial credibility cannot be assessed from the provided information.

Supplier typeThe supplier is described both as a trading company and as a manufacturer. Its formal entity information identifies Shanxi Donghuang Wind Power Flange Manufacturing Co., Ltd. as a manufacturer, while its business description states that it manufactures and exports flanges and forgings in China.

CertificationsThe supplier reports an ISO9001:2015 certificate and states that it holds ISO-system, PED, and TUV certifications. Its stated compliance scope includes processes, materials, testing, storage, delivery, and after-sales service, although the specific validity and coverage of each certificate are not provided.

Production capacityThe supplier reports five production lines, 6–10 quality-control staff, 60 employees, and annual production of 5,000 tons of steel forgings and flanges. Its product scope includes large flanges, rings, square forgings, shafts, and related components, supporting a demonstrated manufacturing capability.

Customization capabilityThe supplier explicitly identifies standardization and customization as advantages and lists customized flanges and forgings among its offerings. The product range includes multiple flange configurations and forging forms, directly supporting customization capability.

Client casesThe supplier states that it serves clients in more than 15 countries across the EU, USA, Gulf area, UK, South America, Australia, and Asia, and reports export activity beginning in 2001. The provided trade information also identifies a Ukraine-related buyer record registered in June 2025, although detailed project references or customer performance evidence are not supplied.