About Koosei Precision

Precision Machining & Mold Components Manufacturer

Koosei Precision Co.,Ltd was founded in 2019 in Chang'an, Dongguan, China, by experienced machining professionals with extensive hands-on experience in precision manufacturing.

We specialize in custom metal components for injection molds, stamping dies, machinery and automation equipment, as well as replacement and spare parts made to customer drawings and specifications.

Our company was founded by people who have spent years working directly with precision machining and manufacturing.

Our core technical team brings 10–20 years of hands-on industry experience, with practical knowledge of engineering drawings, tolerances, materials, machining and inspection.

That experience matters when a component has tight tolerances, critical dimensions or specific finishing requirements.

We take the time to understand the details behind each drawing and approach every part with care and precision.

Injection Mold Components

Precision components for injection mold making, maintenance and repair.

Stamping Die Components

Custom precision parts for stamping dies and tooling applications.

Replacement & Spare Parts

Replacement components made to customer drawings, samples or specified dimensions.

Machinery & Automation Components

Custom metal components for machinery and automated equipment.

We keep our operation focused so our technicians can give close attention to the details of each part.

From reviewing a drawing to machining, finishing and inspection, we focus on the dimensions, tolerances and details that affect fit, function and performance.

Precision is in the details.

01   Understand

We review your drawings, specifications and requirements carefully before production.

02   Work with Precision

Our experienced technicians pay close attention to critical dimensions, tolerances and finishing requirements.

03   Inspect & Deliver

We inspect finished parts and focus on consistent quality, clear communication and dependable delivery.