What secondary operations are available?

We offer shot blasting, heat treatment, machining, surface treatment, assembly, and custom packaging.

What is the minimum order quantity?

The minimum order quantity is 100 pieces.

Do you provide material certifications?

Yes, first article layouts and spectrometer material certifications are provided with all first article samples.

Customizable Construction Hardware Castings Ductile Iron Sand Casting Formwork Tie Nut & Washer

Name: Customizable Construction Hardware Castings Ductile Iron Sand Casting Formwork Tie Nut & Washer
Brand: Qingdao Donrex Co., Ltd.
SKU: 2154826902

Shandong, ChinaQingdao Donrex Co., Ltd.

US$1.00-5.00

500 Pieces

Product profile

Customization

Available

Casting Method

Directional Crystallization

Application

Hardware

Model NO.

OEM

Surface Roughness

Ra12.5

Standard

OEM

Certification

ISO 9001:2008, TF16949

Transport Package

Bulk Packing

Specification

Customized specs

Trademark

OEM

Origin

Shandong

HS Code

73249000

Production Capacity

500000sets/Month

Key features

Comprehensive Customization: Full, minor, and flexible customization available from designs or samples.

Wide Material Selection: Covers gray iron, ductile iron, carbon steel, alloy steel, stainless steel, aluminum, and copper.

Extensive Weight Capacity: Handles parts from 0.05kg up to 20 tons depending on the casting method.

Diverse Molding Methods: Offers green sand, resin sand, and water glass sand casting with automatic lines.

Secondary Operations: Includes shot blasting, heat treatment, machining, surface treatment, and custom packaging.

Quality Certifications: ISO 9001:2008, IATF 16949, and CE certified with 100% finished product inspection.

Fast Lead Time: Normal lead times range from 1 to 6 weeks for fully-machined components.

Global Experience: 20 years of manufacturing success with clients in the US, Japan, Europe, and North America.

Company profile

Full CustomizationR&D CapabilitiesODM ServicesManagement Certification

Qingdao Donrex Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 18 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤9.71h

AI-Powered supplier vetting

SummaryThe supplier offers broad customization, exports approximately 90% of sales, has exported for 18 years, and reports standardized finished-product inspection instructions. It holds CE and ISO9001:2015 certifications and has seven R&D engineers, but launched no new products last year and is explicitly not classified as a professional technical supplier or a provider of 3D software design. The supplier lacks stated inventory, overseas warehouse, overseas showroom, overseas agents or branches, and offline trade-show participation. Manufacturing capacity is constrained by the absence of a valid contract with related subcontractors. Customer evidence is limited: there is no cooperation with Fortune 500 companies, while repeat-buyer preference is reported at 50%–80%. Financial credibility cannot be assessed because no relevant financial information is provided.

CertificationsThe supplier reports CE product compliance certification and an ISO9001:2015 management-system certificate. These are explicit certifications supporting compliance and quality-management capability.

After-Sales capabilityThe supplier reports no overseas warehouse, overseas showroom, overseas agents or branches, and no overseas service countries. It does provide several quotation and payment options, but the stated international service infrastructure is limited.

R&D capabilityThe supplier has seven R&D engineers and offers multiple forms of customization, but it is not a professional technical supplier, does not provide 3D software design services, and launched no new products in the past year. The evidence shows customization capacity but weak recent product-innovation evidence.

Production capacityThe supplier has written and uniformly followed finished-product inspection instructions, reports one-month average lead times in both peak and off-season periods, and identifies 40 qualified suppliers for service capability. However, it has no inventory capability and no valid manufacturing-capacity contract with related subcontractors, creating an explicit production-structure deficiency.

Customization capabilityThe supplier explicitly provides customization from designs, customization from samples, full customization, minor customization, and flexible customization. This is direct evidence of a broad range of customization services.