Your Trusted Partner for Rapid Prototyping and Low-Volume Manufacturing
we deliver high-precision components to global industries
ABOUT
Dongguan ShengmaiSi Hardware Products Co., Ltd. (SMS) is a precision CNC machiningcustomization service provider rooted in Dongguan, serving the global market. We specializein providing solutions for industries such as automation, medical, automotive, consumerelectronics, aerospace, and more
Our mission is to provide high-quality, precision parts that meet your exact specifications, ontime, every time. Whether you need a single prototype or production runs, we're here to bringyour ideas to life with services like CNC machining, 3D printing, and injection molding.
Our Story
At shengmaisi, we’re transforming how manufacturing gets done. Since 2019, we’ve helped businesses across worldwide streamline production with AI-powered solutions that save time, cut costs, and boost efficiency.
We specialize in CNC machining, injection molding, sheet metal fabrication, and 3D printing, supporting industries like aerospace, automotive, medical, and consumer products. With state-of-the-art technology and a trusted network of in-house and China-based facilities, we deliver precise, reliable results on every project.
From rapid prototyping to high-volume production, we’re your go-to partner for flexible, scalable manufacturing. Our online platform provides instant quotes and real-time updates, while our experienced engineers guide your project every step of the way.
At shengmaisi, we help businesses bring ideas to life—easier, faster, smarter, and better.
Experience manufacturing made simple. Let’s get started.
Let’s get started.
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2019
Established the first self-owned factory in Shenzhen.
2024
Expanded manufacturing capabilities. Officially started the foreign trading business.
2026
To be continued…
2020
Established the second factory in Dongguan to expand production.
2025
The foreign trade business has been relocated to Dongguan with the establishment of a dedicated foreign trade company.
Why Partner with shengmaisi CNC?
We specialize in a variety of manufacturing processes, from CNC machining and 3D printing(SLA, SLS, DMLS) to injection molding and sheet metal fabrication, ensuring we can meet the diverse needs of industries like automotive, aerospace, medical, and consumer electronics. Our expertise also extends to rapid prototyping, vacuum casting, and material extrusion, providing flexible solutions for your projects.
Innovation
Quality
Customer Success
Integrity
We continuously invest in cutting-edge technology to stay ahead of industry demands.
Our rigorous quality management system ensures every part meets your specifications.
Your success is our priority – we’re here to support your projects from rapid prototyping to production.
We believe in transparency, reliability, and delivering on our promises.
Our Core Values
Your One-Stop Solution for Rapid Prototyping
Skilled Team, Advanced Technology, Delivering Precision for Global Industries.
Let's Get In Touch