Custom Parts & Supply Chain Solutions
We support global buyers with custom metal parts, sourcing coordination, quality control and export delivery for automotive, agricultural, marine and general industrial projects.
Real industrial footage highlights manufacturing coordination, process control and export-ready delivery capabilities at first glance.
Manufacturing Network Coordination
We coordinate machining, heat treatment, surface finishing, assembly and export packaging to reduce multi-supplier communication costs.
Controlled Project Delivery
Sampling, inspection and batch delivery are organized around drawings, working conditions and lead-time requirements, making the service suitable for project-based industrial procurement.
Built for Industrial Sourcing
We help overseas buyers source custom industrial parts from China with clearer communication, better process control and more reliable delivery.
Application-focused
We understand the practical requirements behind automotive, agricultural, marine and general industrial applications.
Integrated supply base
Our network covers machining, heat treatment, surface finishing, assembly, packaging and export coordination.
Flexible project support
From samples and trial orders to stable production supply, we support both new development and repeat purchasing.
What We Supply
Typical product categories for industrial buyers, project teams and sourcing managers looking for custom or repeat-order parts.
Automotive Gears
Custom gears for reducers, gearboxes and transmission systems, with support for heat treatment, grinding and precision inspection.
- Common materials: 20CrMnTi / 42CrMo
- Processes: hobbing, shaping, carburizing, quenching and grinding
- Delivery: production according to drawings, tolerances and inspection requirements
Agricultural PTO Shafts
Built for tractor and implement drive systems where impact resistance, fatigue life and field durability matter.
- Common materials: 40Cr / alloy steel
- Surface treatment: black oxide, coating, galvanizing, etc.
- Applications: PTO power output and agricultural implement connections
Marine Fastener Kits
Fastening solutions for marine environments with corrosion resistance, vibration durability and project-based kit supply.
- Common materials: 316 / duplex stainless steel / alloy steel
- Treatment: anti-corrosion coating, plating and passivation
- Applications: marine engines, deck systems and structural connections
Industrial Structural Parts
Machined, welded and formed parts for equipment upgrades, assemblies and industrial support projects.
- Files: PDF / DWG / STEP / samples supported
- Services: drawing review, sampling and batch production
- Documents: material reports and inspection records available
Available Documentation
From Drawing to Production
We help buyers move from concept, drawing or sample to validated production with the right material, process and delivery plan.
Project Review
We review drawings, samples, materials, tolerance expectations and end-use conditions before quotation.
Workflow
- Requirement review
- Drawing check
- Quotation confirmation
- Sample approval
- Production
- Inspection and shipment
Process Coverage
CNC machining, turning, gear processing, welding, stamping, injection molding, heat treatment and surface finishing.
Delivery Support
We support samples, pilot orders, production scheduling, export packaging and logistics coordination.
Quality Control at Every Stage
Consistent quality matters more than a single good sample. We focus on material control, process inspection and shipment readiness.
Material grade, specification and supporting certificates are checked against order requirements.
Critical features such as threads, holes, gear profiles, hardness and coating thickness are checked during production.
Inspection records, labels, anti-rust packing, pallets and export-ready packaging can be arranged as required.
Typical Project Cases
Examples of how we support buyers across different industries, working conditions and delivery requirements.
European Buyer · Precision Gears
Process planning focused on hardness, meshing stability and consistency to support sample approval and volume production.
Southeast Asia Farm Project · PTO Components
Material and surface treatment were optimized for heavy-duty field use, mud exposure and repeated impact loading.
Marine Engine Project · Fastener Kits
Corrosion-resistant fastening kits were supplied for marine service conditions with project-based packing and delivery support.
Your China Sourcing Partner
YunmaiLink Supply supports industrial buyers with custom parts sourcing, manufacturing coordination, quality follow-up and export delivery from China.
We do more than connect buyers with factories. We help manage drawings, process routes, inspections, packaging and shipment so projects stay clearer and easier to control.
Integrated Supply Chain
We coordinate the right factories and processes from raw material to shipment based on project needs.
Confidential Project Handling
Drawings, samples, quotations and technical files are managed carefully to protect customer information.
Technical Insights
Useful content on materials, machining, surface treatment and sourcing decisions for industrial buyers.
How to Choose Materials for Agricultural Gears
A practical look at wear, pitting, breakage and heat treatment choices for farm equipment gears.
Surface Treatment Options for Marine Fasteners
A comparison of galvanizing, Dacromet, stainless steel and protective coatings for marine use.
Gear Precision vs. Cost in Automotive Projects
An overview of how precision levels affect machining cost, performance and sourcing decisions.
Common Buyer Questions
Clear answers on drawings, sampling, inspection and delivery help buyers move faster.
Can you manufacture from drawings or samples?
Yes. We review drawings, samples, materials, application needs and target quantities before giving process and quotation advice.
Can we approve samples before full production?
Yes. Sample approval is recommended for new parts and custom projects before mass production starts.
Do you provide inspection and export packing?
Yes. We can arrange inspection records, material documents, labeling, anti-rust protection, pallets and export packaging.
Who do you usually work with?
We work with equipment makers, sourcing teams, importers, distributors and industrial buyers who need China-based supply support.
Send Your Drawing for a Quote
Share your drawing, material, quantity, surface treatment and delivery target. The clearer the input, the faster and more accurate the quotation.
Already Have a Drawing or Sample?
Send us your drawings, quantities, materials and delivery targets. We will review manufacturability and propose the right sourcing path.