Iron, Steel, and Copper Processing Business

Last Updated on 14 10 月, 2025 by

Iron, Steel, and Copper Processing Business

1. Endorsement Cases from Key Industry Clients

 

Processing of iron, steel, and copper parts and welded components for U.S. customers

 

2. Self-Introduction

With 18 consecutive years of stainless steel processing experience from 2007 to 2025, Jinzhu provides machining, sheet metal forming, and professional welding services to a total of 15 industries. These industries include food machinery, chemical machinery, medical and pharmaceutical equipment, new energy equipment (including equipment parts and functional components), photovoltaic equipment, semiconductor equipment, kitchen and bathroom, precision instruments and meters, 3C consumer electronics, building materials and decoration, outdoor equipment, luxury logo display stands and metal packaging, aerospace components, laboratory equipment components, as well as CNC machining, mold stretching, stamping and welding parts.

Jinzhu has also gained the trust and recognition of clients from countries and regions such as Europe, the United States, and Japan.

 

3. What products do we have?

 

• Laser Cutting Processing
• CNC Machining
• CNC Bending Processing
• CNC Stamping Processing
• CNC Rolling Processing
• TIG/MIG Welding Processing
• Laser Welding Processing
• Grinding and Polishing
• Spraying or Electrolysis
• Oxidation
• Assembly
• Inspection
• Packaging and Shipping

 

4. KeyIntroduction to the Principles of Core Products

Welding (especially TIG/MIG welding processing and laser welding processing)

We can achieve extreme-quality results that meet customers’ requirements. This is supported by 20 years of welding solutions, which effectively address numerous pain points related to materials science, structure, appearance, functionality, application, and cost.

 

5. Why Choose Us?

 

1. We have over 20 years of extensive and comprehensive experience in solving problems related to overseas product applications and requirements, supported by numerous actual mass-production cases.
2. While possessing our own core competitiveness, we also have strong upstream and downstream resources to assist in problem-solving.
3. We have the capability of process iteration and the ability to develop new products with high certainty.

 

6. What Advantages Do We Have?
7. We have extensive industry application experience. When a customer informs us of their industry, we can quickly retrieve process solutions from our past customer database of applicationexperiences, and communicate drawing requirements and product requirements. This effectively reduces development time and ensures that the customer’s design requirements are accurately met.
8. When our own conditions and capabilities are insufficient (mainly due to bottlenecks in hardware processing equipment and special processes), we have sufficient upstream and downstream resources to jointly solve the problems, and can professionally and effectively select and manage these Tier 2 (T2) suppliers.
9. We can identify unreasonable aspects of a customer’s design, or situations where subsequent manufacturing processes are difficult to implement (or can be implemented but at excessively high costs leading to waste). For these issues, we can put forward effective suggestions for ID improvements, optimizations, or even design changes, and submit them to the customer for review and confirmation. In fact, numerous customers have benefited from this capability of ours, enabling their projects to be successfully implemented on schedule.

 

7. FAQs

 

Q1:  Material issue – Does it meet the requirements?

A: Regarding materials, we always provide materials with international standard compositions in accordance with the drawing requirements, and issue material certificates as proof.

 

Q2:  How to ensure the consistency of products during the processing?

A:  We can design and manufacture professional tooling for product processing, submit it to the customer for discussion and confirmation, and formulate the processing SOP (Standard Operating Procedure) based on the confirmed tooling to guide production.

Q3:  How to ensure the yield rate of products during production?

A:  We hold ISO9001 quality management system certification. In strict compliance with the quality system requirements, we implement full closed-loop control over all links in the product processing process, including operators, machinery and equipment, materials, process methods, processing environment (including turnover, placement, and safety), and inspection. We also follow the processes of incoming material inspection, in-process inspection, and outgoing inspection to ensure a 100% yield rate.

 

Q4:  How to ensure on-time delivery with guaranteed quality and quantity?

A:  We use production and delivery management software to dynamically display the delivery date required by the order, the arrival time and status of in-transit materials, as well as the completion time and status of each production process.

In case of abnormalities, the software will display corresponding color alerts, and allow uploading of photos of abnormal products and marking the problematic positions on drawings. At the same time, we will immediately arrange for an investigation into the cause: if the issue is related to the customer, we will communicate with them promptly; if it is an internal issue, we will immediately find solutions to resolve it and restore the process to normal (marked in green), ensuring the production process proceeds to the next step.

All processes are traceable, allowing us to identify the specific time node, work team, and even the individual operator involved. All time settings are based on the delivery time we committed to the customer through communication, and we only allow early delivery, not delays. This ensures on-time delivery.

 

8. Ordering Process

When engaging and communicating with a customer, we firstly ask the customer to fill out a Customer Requirement Information Form -> The chief engineer convenes personnel from the business, technology, engineering, production, quality, procurement, and PMC (Production and Material Control) departments to evaluate the customer’s products and requirements -> The content of this evaluation meeting will be organized into clear communication points, which the business follow-up specialists use to contact with the customer for discussion and confirmation -> Once we fully understand the customer’s requirements and the customer also fully understands our proposal, and a mutual agreement is reached on technical details, drawings, quantity, quality requirements, and delivery requirements -> we will issue a quotation -> After the customer confirms the quotation, either the customer or we will issue a commercial contract, and both parties will confirm the terms with each other -> Subsequently, the customer issues an official PO (Purchase Order) –> We then initiate the production and delivery process based on the previously confirmed technical document and the PO -> Dynamic confirmation documents are generated during the production process and after completion -> The customer issues an acceptance confirmation form -> Makes payment in accordance with the commercial contract -> Finally, the goods are shipped via logistics.

 

9. Customer Cooperation Feedback

All customers provide a feedback form after receiving the goods, which is stored in the project information feedback section. In case of complaints, we will issue an 8D quality improvement report, and the improvement plan confirmed by the customer will also be recorded in the project information. This ensures that when placing a repeat order, the next order can be executed in accordance with the corrected method after improvement.

 

10. Submit the requirement form

After communicating with our business staff, if customers decide to choose us and have the intention to cooperate with us, please submit basic information via the requirement form. We will respond and provide feedback within 24 working hours.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Iron, Steel, and Copper Processing Cases：

1. Iron Processing

 

The image below shows:

Processing services for iron flower boxes and flower fences

 

 

The image below shows:

Processing services for iron racks, columns and embedded parts

 

 

The image below shows:

Processing services for iron special-shaped stretch-bent and bent structural products

 

 

 

The image below shows:

Processing services for iron special-shaped stretch-bent and bent structural exterior wall and interior decoration products

 

 

The image below shows:

Custom processing services for non-standard channel steel

 

• Project Requirements:

Material: Iron or Steel

• Product Requirements:

For iron and steel products, regardless of their structure or specific requirements, we can fulfill the production.

 

 

 

2. Processing Services for Copper Products

 

Project Name: Copper Plated Gold Probes for New Energy Batteries (Current Range: 20A Low Current ~ 600A High Current)

Technical Requirements:

1. The combination of the probe sleeve and the thimble shall not rotate, and the pressing and resetting shall be smooth. When the probe is in use, there shall be no jamming during resetting;
2. The compression force of the voltage probe shall reach 8N ± 15% when compressed by 2mm;
3. The compression force of the entire probe shall reach 100N ± 10% when compressed by 5mm, and the maximum compressible stroke of the probe shall be ＞10mm;
4. In a working environment of 120℃, the material shall not become brittle within 3 years;
5. When the probe is compressed by 5mm, the indentation depth on the battery pole shall be ≤ 0.1mm;
6. The pressing service life of the probe shall be ≥ 30,000 cycles;
7. The contact resistance shall be ＜25 mΩ. At room temperature (25℃), when the probe passes a current of 200A continuously for 5 hours, the temperature rise shall be ≤ 15℃;
8. Insulation resistance: ≥ 1×10⁹Ω at 500VDC;
9. Flame retardant rating: UL94 V-0;
10. Coating: NI (≥ 1 μm) + AU (≥ 0.3 μm);
11. No rust shall occur after a 72-hour salt spray test (5% concentration); no corrosion shall occur on the probe head after 48-hour electrolyte immersion;
12. The voltage sampling pin shall be insulated from the current pin.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2. See the image below:

Machining and Welding of Precision Copper Expansion Sheet Components

 

 

 

3. See the image below:

Machining and Welding of Precision Copper Expansion Sheet Components

 

 

 

 

 

 

 

 

 

 

 

4. See the image below:

Machining and Welding of Precision Mirror-Finish Copper 4K Cold Screens

 

 

 

 

 

 

 

5. See the image below:

Machining of Precision Copper Pipes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6. See the image below:

Precision Copper-Aluminum, Copper-Steel Composite Welding and Machining

 

 

 

 

 

 

 

1. The specific products and services we provide to customers cover the following key words/terms

 

1. Products and Services：

A：Basic Metal Materials Category

• Metal Sheet
• Stainless Steel
• Aluminum Alloy
• Brass Plate

B：Metal Processing Form Category

• Metal Fabrication  – Core Service Terms
• Sheet Metal Fabrication – Targeted Customer Group
• Laser Cutting Service – Technical Buyer
• Metal Bending Service – Supporting Processing
• CNC Machining Parts – Demand for Precision Parts
• Metal Stamping Parts – Automotive/Electronic Supply Chain
• Welding Service – Keywords for Processing Capabilities
• TIG/MIGWelding Service, Laser welding service
• Stainless steel welding (TIG/MIG): (TIG/Gas Tungsten Arc Welding, MIG/Gas Metal Arc Welding)

 

C：Finished Products and Components Category

• Custom Metal Parts –OEM buyer
• Precision Metal Components – High-end Manufacturing
• Metal Cabinet – Electrical/Control Equipment
• Metal Bracket – Pan-Industrial Applications
• Metal Enclosure – Protection of Electronic Equipment
• Architectural Metalwork – Engineering Projects

 

D：Industry Application Scenarios

• Industrial Metal Fabricator – B2B customer
• Food Grade Stainless Steel –Food and Catering Equipment Suppliers
• Medical Device Metal Parts – High-Demand Fields
• Stainless Steel Equipment and Components for the Semiconductor Industry
• Automotive Metal Parts  – Auto Parts Supply Chain
• Food processing equipment parts: (Core Applications of Stainless Steel)
• Medical device components: (High Precision, Stainless Steel/Titanium Alloy)
• Pharmaceutical equipment parts: (Sanitary-Grade Stainless Steel)
• Semiconductor equipment parts: (High-Cleanliness Stainless Steel/Special Alloys)
• Marine components: (Salt Spray Resistant Stainless Steel/Aluminum Alloy)
• Automotive metal parts: (Various Types of Steel/Aluminum Alloy)
• Architectural metalwork: (Stainless Steel/Aluminum Alloy Decoration/Structure)
• HVAC components:  (Stainless Steel/Copper Pipe Fittings)
• Machinery spare parts:  (Various Types of Metal Parts)
• Electronics enclosure suppliers
• Telecommunication metal parts
• Medical equipment metal housing
• Automotive sheet metal components
• Solar panel mounting brackets

 

E：Core Product & Process Keywords

• Stainless steel fabrication:
• Stainless steel machining:
• Stainless steel components:
• Stainless steel parts:
• Stainless steel products:
• Stainless steel structures:
• Stainless steel assemblies:
• Sheet metal fabrication
• Metal stamping
• Laser cutting services
• CNC bending
• Metal enclosure fabrication
• Precision sheet metal
• Custom metal parts
• Chassis fabrication
• Metal brackets OEM
• Welding assembly
• welding fabrication services
• welding outsourcing
• robotic welding services
• stainless steel welding
• aluminum welding
• sheet metal welding
• structural steel welding

 

F：Keywords for Procurement Intent

• Supplier of metal components:
• Outsource metal fabrication:
• Custom metal parts manufacturer:
• Metal parts vendor:
• High precision metal parts:
• welding supplier
• welding vendor
• welding sourcing
• welding company
• welding service provider

 

J：Customer Type Keywords

• OEM sheet metal supplier
• Metal fabrication sourcing
• Contract manufacturing RFQ
• Industrial equipment manufacturers
• Hardware importers
• Machinery parts buyers

 

There are a total of seven major categories: ABCDEFJ. The products and services under these seven categories have the following characteristics:

1. Each category can independently form a single product or service on its own;
2. Any combination of two or three of these categories can also form a product or service order;
3. Sometimes, customers may require services from all seven categories to form an order;
4. There is another scenario: when a customer has sourced six of the categories but cannot find a provider for laser welding, they will also come to us. They will ask their existing suppliers to designate us to provide laser welding services, because neither the customer nor their suppliers have found a better supporting laser welding service provider in the market than us.
5. For customers in need of products or services from the above seven categories, we are the preferred supplier. Please contact us.