Sourcing custom plastic parts can actually be simple.
OYA exists to remove every point of friction — one factory, one point of contact, full accountability from your first drawing to final shipment. Fast quotes, clear tolerances, protected IP.
Send your drawing →
Shanghai OYA Plastic Technology Co., Ltd. is a full-service manufacturer of custom plastic parts.
Backed by 30+ years of engineering experience and certified to ISO 9001:2015, we take products from development and mold-making through prototyping to mass production — pairing technical depth with rigorous quality control for customers worldwide.
No coordinating between vendors, no finger-pointing when a tolerance slips. Everything happens in our own facility.
Engineering-grade resins, single and multi-cavity tooling, high-volume runs with in-process inspection.
Molds designed and built in-house — faster iteration, tighter control, no third-party markup.
Machined components and mold inserts to tight tolerances, for prototypes and production alike.
Sub-assembly, inserts and finishing, so what leaves our dock is ready for yours.
Professional product, quality guaranteed — from the mold that makes the part to the finished assembly.
Quotes and inquiries answered within 1 hour.
From tooling to mass production, fully managed.
Precision up to ±0.01mm.
NDA signed to protect every customer design.
Send drawings or samples; DFM feedback and quote back within 1 hour.
Mold designed and built in-house — no outsourcing, no lost time.
T1 samples for your approval; we iterate until it's right.
Full-process quality control on every run, not just the first.
On-time global shipping, with after-sales support that doesn't disappear.
Strict compliance with ISO 9001:2015 quality management systems. Full material traceability and inspection at every stage.
Incoming resin inspection — every batch verified before it touches a machine.
In-process checks — dimensional control throughout the run, not just at the start.
Pre-shipment inspection — nothing leaves without a final sign-off.
Certificates available for client review on request.
A snapshot of recent custom work across electrical, electronic and mechanical components — molded in engineering-grade resins to tight tolerances. If your part looks like one of these, we've likely made something close.
We've excelled at the following industries, let us know if you want to learn more!
Whether it's a 50-piece pilot run or a 500,000-piece program, the terms bend to fit your project — not the other way around.
Small and large orders welcome — start where you are and grow with us.
Smooth, honest, English-fluent project management from first email to final shipment.
Production schedules you can plan your launch around.
No matter the size or complexity of your project, we bring 30 years of expertise and a sincere attitude to every product.
Inspection from incoming resin to pre-shipment, on every run.
Tooling through delivery, managed by a single point of contact.
We stay reachable long after the shipment lands.
Signed before you send us anything sensitive.
Send us your drawing, 3D file or sample — receive DFM feedback and a detailed quote within 24 hours.
