HONGYI
Custom Manufacturing Partner in China

About Us

A China-based manufacturer helping you produce custom metal and plastic parts through metal stamping, CNC machining, and plastic injection molding.

Send your drawings, samples, or CAD files and we take it from there: design review, process planning, tooling coordination, production, and quality verification, all under one roof.

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HONGYI manufacturing workshop producing custom metal and plastic parts
HONGYI engineer reviewing a custom part drawing on the production floor
Who We Are

A Manufacturing Partner For Your Custom Metal & Plastic Parts

We are a China-based manufacturer built around custom, drawing-based parts, not off-the-shelf catalog products. Send your drawings, samples, or CAD files and we make exactly what your project needs.

  • Three processes in-house: metal stamping, CNC machining, plastic injection molding.

  • Full project support: process review, tooling, material confirmation, and sample validation.

  • Sample to bulk: stable, repeatable production once your part is approved.

What We Do

Built Around Your Custom Parts

Send your drawing or sample. We cover the full path from review to verified production.

Drawing-Based Manufacturing

We build to your drawings, samples, CAD files, specs, and application requirements.

Custom Project Support

Design review, material selection, tooling planning, sample checks, and production follow-up.

Metal & Plastic Part Expertise

Core focus on stamped metal parts, CNC machined components, and injection molded plastics.

Overseas Customer Coordination

Clear communication, requirement confirmation, inspection records, and quality docs when required.

Start Your Project

Have A Drawing Or Sample Ready?

Send your drawings, samples, or CAD files and get a clear quote within 24 hours. Talk directly with Parker for fast answers on spec, tooling, and lead time.

Chat With Parker
What We Focus On

Focused Capabilities For Your Custom Metal & Plastic Parts

We focus on three core processes: metal stamping, CNC machining, and plastic injection molding. Every project is reviewed against your drawings, materials, tolerances, tooling, volume, and quality needs before we start.

Custom stamped metal parts

Metal Stamping

Custom stamped metal parts from sheet materials, built for stable production, tooling accuracy, and consistent quality.

We review part structure, material behavior, tooling feasibility, burr control, springback, and surface finish so your parts stay consistent across runs.

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Precision CNC machined components

CNC Machining

Precision machined components made directly from your drawings, CAD files, and technical specifications.

We review tolerances, datum requirements, material selection, machining strategy, surface finish, and inspection points against your application.

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Custom plastic injection molded parts

Plastic Injection Molding

Custom plastic molded parts supported from moldability review through tooling, sampling, and production.

We review part design, resin selection, mold planning, shrinkage, surface requirements, trial molding, and sample approval before bulk runs.

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How We Support Custom Projects

From Your Drawings & Samples To Manufacturable Parts

Custom manufacturing is more than equipment. Before production starts, we review your requirements carefully to flag manufacturing risks early, confirm key details, and align expectations, so you get a smoother path from quote to sample approval to production.

Drawing Review

We review your drawings, CAD files, samples, dimensions, tolerances, materials, surface finishes, and application requirements before quotation or production planning.

Manufacturability Review

We check whether your part design suits the chosen process, covering stamping feasibility, machining strategy, moldability, tolerance control, material behavior, and potential production risks.

Material & Finish Confirmation

We help confirm material and surface treatment based on what your part needs: strength, corrosion resistance, conductivity, heat resistance, appearance, assembly fit, or molding performance.

Tooling & Process Planning

When your project needs dies, molds, fixtures, or dedicated tooling, we review tooling feasibility, sample validation, production stability, maintenance, and long-term manufacturing needs.

Sample Verification

Initial samples can be checked against your drawings, critical dimensions, appearance, and assembly needs before you approve production.

Production & Quality Control

Once requirements are confirmed, we manage production to the agreed specs, with process controls, inspection activities, packaging, and documentation when your order requires it.

Manufacturing Capabilities

Support For Your Custom Metal & Plastic Components

Our capabilities are built around custom part projects: stamping, machining, molding, tooling, material selection, finishing, inspection, and follow-up. Every job is reviewed against your drawings, materials, tolerances, quantities, finishes, and quality expectations before we begin.

Processes

Metal Stamping CNC Milling CNC Turning Plastic Injection Molding Mold & Tooling Support Fixture Support Secondary Operations Assembly Support

Materials

Stainless Steel Carbon Steel Aluminum Copper Brass Engineering Plastics Injection Molding Resins Other On Request

Surface Finishes

Zinc Plating Nickel Plating Chrome Plating Passivation Anodizing Powder Coating Painting Laser Marking Other On Request

Project Types

New Product Development Prototype & Sample Low-Volume Production Repeated Production Runs Tooling-Based Projects Supplier Transfer Cost Reduction Custom From Drawings
Let's Review Your Project

Not Sure Which Process Fits Your Part?

Send your drawing, sample, or CAD file and we'll review materials, tolerances, and tooling, then come back with a clear quote within 24 hours. Prefer to talk it through? Message Parker directly.

Chat With Parker
Working With Overseas Customers

Built For Clear, Cross-Border Project Communication

We support your overseas project end to end: drawing-based communication, English coordination, requirement confirmation, sample approval, inspection documentation, and shipment preparation to suit your needs.

Before production starts, we help confirm the details that cause most delays, so your project moves with fewer misunderstandings.

  • Drawings & tolerances
  • Materials & finishes
  • Appearance standards
  • Packaging & documents
HONGYI team coordinating an overseas custom part project in English
Our Project Approach

A Clear Process For Your Custom Manufacturing Project

Custom metal and plastic parts need a clear process before production starts. We review your drawings, materials, tolerances, finishes, tooling, and inspection needs, so you move from first requirements to verified production with more confidence, built around requirement confirmation, manufacturability review, sample validation, and quality control.

Step 01

Review Project Requirements

We map what your project needs before anything is quoted.

Drawings, CAD files, samples, materials, quantities, finishes, tolerances, application, packaging, and documentation, all reviewed up front.

At This Stage

Requirement Confirmation

Step 02

Evaluate Manufacturing Feasibility

We check your part suits the chosen process.

For stamping, CNC, or molding we flag risks early: tooling needs, tolerance control, material behavior, shrinkage, burrs, deformation, or assembly concerns.

At This Stage

Manufacturability Review

Step 03

Confirm Materials & Key Requirements

We lock the details that decide your part quality.

Material grade, surface treatment, critical dimensions, appearance standards, function, inspection points, and packaging, confirmed before we go further.

At This Stage

Spec & Finish Confirmation

Step 04

Prepare Quotation & Project Plan

You get a quote built on real project conditions.

Priced on method, material, quantity, tooling, finish, inspection, and packaging. For tooling projects we add tooling cost, sample schedule, and trial production.

At This Stage

Quotation & Planning

Step 05

Arrange Tooling, Fixtures Or Samples

We prepare the right setup for your part.

Prototype or production samples, stamping dies, injection molds, or machining fixtures, set up for part quality, stable production, and repeatable output.

At This Stage

Tooling & Sampling

Step 06

Verify Samples Before Production

Samples are checked before you approve production.

Measured against drawings, dimensions, tolerances, finish, appearance, fit, and function. Inspection reports, photos, or material docs provided when required.

At This Stage

Sample Validation

Step 07

Improve & Confirm Before Release

We refine until the part is right.

If adjustments are needed, we improve the sample, tooling, process, or inspection method. Production starts only after key requirements and standards are confirmed.

At This Stage

Adjust & Approve

Step 08

Manage Production & Quality Control

We run production to the confirmed spec.

Managed against confirmed specs, inspection points, critical dimensions, appearance, and packaging. Final inspection and documents arranged before shipment as required.

At This Stage

Production & QC

Swipe
Request A Quote

Send Your Part Straight To Parker

Send your drawings, samples, or CAD files with quantity and target spec. The more you share, the sharper your quote, and you'll hear back within 24 hours.

Parker, your project contact at HONGYI

Parker

Your Project Contact, HONGYI

Hi, I'm Parker. I handle custom part inquiries myself, stamped, machined, or molded. Send your drawings and I'll come back with a clear quote on material, tolerances, finish, and lead time. Not sure which process fits? I'll tell you straight.

  • Reply within 24 hours, often sooner
  • 15+ years with custom metal & plastic parts
  • Your drawings and files stay confidential

Tell Me About Your Part

Include process, material, quantity, key tolerances, and finish if you can. Fields marked * are required.

PDF, DWG, DXF, STEP, images. Multiple files welcome.

Your information goes straight to Parker and is never shared.