+86 13800138000 sales@longimpro.com

Your choice of Longim Prototype demonstrates exceptional judgment

Quote in 24 hour, leads from 3 days

From rapid prototyping to volume manufacturing

Experienced custom design and project manager

Our Services

On Demand Prototype and Manufacturing

cnc machining services

CNC Machining

Precision manufacturing where computer-controlled machines cut and shape metal or plastic parts with high accuracy.

plastic injection molding services

Plastic Injection Molding

Mass-production process where molten plastic is injected into a mold to create identical parts quickly and cost-effectively.

rapid tooling services

Rapid Tooling

Fast production of molds (often for injection molding or casting) to accelerate prototyping and low-volume manufacturing.

sheet metal services

Sheet Metal

Fabricating functional parts or enclosures from thin metal sheets through punching, cutting, bending, finishing, and assembly.

vacuum casting services

Vacuum Casting

A low-volume production method using silicone molds and polyurethane resin to create excellent prototypes or end-use parts.

3d printing services

3D Printing

Additive manufacturing process that builds parts layer by layer from digital models, ideal for prototypes and complex geometries.

Quality Finishing

Surface Finishing Services Provide

Surface Finishing Services – Enhance the durability, appearance, and performance of your metal or plastic parts with our expert finishing solutions. We offer anodizing, powder coating, plating, polishing, sandblasting, and more to improve corrosion resistance, aesthetics, and functionality. Perfect for prototypes, industrial components, and consumer products—delivering a flawless finish every time.

Why Us

Why Choose Longim Prototype?

Precision & Quality

Advanced prototyping and manufacturing with tight tolerances and rigorous QA.

Fast Turnaround

Rapid prototyping, rapid tooling and production to meet your tight deadlines.

Wide Range of Services

From rapid tooling, plastic injection molding, 3D printing and vacuum casting to CNC machining and surface finishing.

Material Versatility

Work with plastics, metals, elastomers, and composites for diverse applications.

Cost-Effective Solutions

Competitive pricing for prototypes, molds, and low-volume production.

Industry Expertise

Trusted by automotive, aerospace, medical, and consumer electronics innovators.

End-to-End Support

From design optimization to final finishing—we’ve got you covered.

Reliable Partner

Consistent results, on-time delivery, and clear communication.