What are your payment terms?

We require a 30% down payment before production via T/T, with the remaining 70% balance due upon completion of production.

Are my drawings or samples kept safe after submission?

Absolutely. We are committed to confidentiality and are willing to sign an NDA if needed. Your drawings and samples are securely handled and kept confidential.

Precision Welding Services for Custom Steel Structures and Components

Name: Precision Welding Services for Custom Steel Structures and Components
Brand: Dongguan Changwei Machinery Co., Ltd.
SKU: 2160104745

Guangdong, ChinaDongguan Changwei Machinery Co., Ltd.

US$1.00-1,000.00

1 Piece

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

Standard

GB, ASTM, DIN, JIS

Tolerance

±0.01~1.0mm

Model NO.

CW-0001-00021

Surface Treatment

Powder Coating Zinc Plating Chrome-Plating Polis

Machining Method

Laser Cutting Bending Welding Grinding etc

Material

Carbon Steel Alloy Steel Stainless Steel

Application

Steel Workshop, Steel Structure Platform, Steel Fa

After-Sales Service

1 Year

Carbon Structural Steel

Q235

Transport Package

Standard Package/Pallet or Container/as Per Custom

Specification

Customized

Trademark

Custom logo

Origin

China

Production Capacity

5000tons/Year

Key features

Comprehensive Material Options: Supports Carbon Steel, Stainless Steel, Alloy Steel, Aluminum, Brass, Copper, Bronze, Nylon, and Plastic.

Diverse Surface Treatments: Offers Powder Coating, Zinc Plating, Chrome Plating, Polishing, Spraying, and Phosphate Coating.

Advanced Laser Cutting: Equipped with 20000W and 12000W high-power laser cutting machines for superior accuracy.

Flexible Customization: Provides full customization, minor customization, and flexible options based on samples or designs.

Fast Quote Response: Strives to deliver quotes within 24 hours upon receiving detailed drawings and requirements.

Global Shipping Options: Supports Express, Air Freight, Sea Freight, and Land Transportation with customizable delivery.

Strict Quality Control: 100% inspection for finished products including visual and function checks with traceable raw materials.

Company profile

High Repeat Buyers ChoiceCooperated with Fortune 500Years of Export ExperiencePatents Awarded

Dongguan Changwei Machinery Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 12 Years CertifiedNearest Port: Shenzhen Port, Guangzhou PortAverage Response Time: ≤0.06h

AI-Powered supplier vetting

SummaryDongguan Changwei Machinery Co., Ltd is identified as a factory and limited company in Dongguan, operating in manufacturing and offering welding frames, structural components, racks, and equipment casings. It reports ISO 9001:2015 quality-system certification, documented inspection, corrective-action, complaint-handling, and quality-assurance procedures. The supplier states that it provides OEM and ODM services, has an available SDK, introduced new products during the past year, and supports multiple forms of customization. Its production resources include laser cutting, milling, hydraulic, sheet-metal drawing, and hacksaw equipment, with inventory capability and contracts with associated subcontractors. Overseas support is limited: it has no overseas warehouse, showroom, agents, branches, or offline trade-show participation, and exports account for 1%–10% of sales. Reported customer groups include BYD and Sany Heavy Industry.

Supplier typeThe supplier is explicitly identified as a factory and a limited company located in Dongguan, with manufacturing listed as the industry. Its offered products include welding frames, structural components, racks, and equipment casings, and it reports 91 employees.

CertificationsThe supplier states that it organizes production under ISO 9001:2015 quality-system management standards and reports an ISO 9001:2015 certificate. These slices provide explicit evidence of certification holding.

After-Sales capabilityThe supplier has documented procedures and records for handling customer complaints and corrective and preventive actions, indicating an established service-response process. However, it has no overseas warehouse, showroom, agents, or branches, which limits its overseas service infrastructure.

R&D capabilityThe supplier reports that it launched new products during the past year, provides ODM services, and has an available SDK. These statements directly support product-development and technical collaboration capability.

Production capacityThe supplier is a factory with 91 employees and lists hacksaw, high-power laser cutting, gantry milling, hydraulic, and automatic sheet-metal drawing equipment. It also reports inventory capability and valid manufacturing contracts with associated subcontractors, supporting production execution, although no output or capacity volume is stated.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM service availability, indicating broad stated support for customer-specific product development.

Client casesThe company description identifies BYD and Sany Heavy Industry as stable customer groups. These named customer references provide explicit evidence of customer cases, though the slices do not specify project scope, duration, or performance details.

Product Q&A

Q:How quickly can you provide a quote?

We strive to deliver quotes within 24 hours, provided we receive detailed drawings and requirements.

Q:What information is necessary for quoting?

Please supply 2D/3D drawings (formats: PDF, DWG, DXF, IGS, STP, SLDPRT, etc.) and specify the material, finish, and quantity required.

Q:What is the MoQ for parts?

The MoQ largely depends on your specific parts or projects. We are open to producing prototypes for small quantity test runs.

Q:What is the standard production lead time?

Initial samples are ready within 10-15 days, and mass production takes around 30 days. If molds are required, add 20-40 days.

Q:How do you handle after-sales service?

For any quality issues, please contact us immediately. We take full responsibility for products with quality defects and will address the costs involved. We also document these issues to prevent future occurrences.