About us
Dongguan Yigu Technology Co., Ltd. (brand: YiguProto)
You need parts that fit, ship on time, and do not cost a fortune. We get it. YiguProto is a China-based manufacturer and supplier that runs its own factory in Dongguan. Engineers, startups and global brands use our service to turn CAD files into real metal and plastic parts — fast.
No middleman. No broken English over email. No surprise delays. Just clear quotes, honest feedback, and parts that match your drawing.
Why teams switch to us
We have heard every story. Here are the three pain points engineers and buyers tell us about most — and how our factory fixes them.
You send files to a supplier and wait three days for a price. Sometimes you hear nothing back. We quote most projects within a few hours, and never more than 24 hours.
Tolerances missed, wrong finish, surfaces not deburred. Bad parts cost you time and money. Every batch goes through IQC, IPQC and OQC checks, with CMM reports available on request.
You email a question and get no reply for a week. Or you deal with a trading company that cannot answer technical questions. Your project manager speaks English and replies within one business day — no middleman, no excuses.
Who we are
Many "China manufacturers" online are actually trading firms that outsource your job. YiguProto owns and operates its own workshops in Dongguan, Guangdong. When you work with us, your parts never leave our facility — or our quality control.
From first email to shipped parts, you work with one small, dedicated team that knows your project by name.
Our facilities
Unlike trading companies that shuffle your order between workshops, we run four dedicated production zones inside our own facility. That means consistent quality, faster lead times, and one point of contact from start to finish.
3-axis, 4-axis and 5-axis milling centers, CNC lathes, Swiss-type machines, EDM and surface grinding. Tight tolerance parts in metal and plastic.
View Factory →Industrial SLA, SLS, SLM (metal), MJF and FDM machines. Rapid prototypes in resin, nylon, metal and engineering plastics in as fast as 24 hours.
View Factory →Rapid tooling and production molding with machines from 50T to 1000T. In-house mold making, overmolding, insert molding and 2K molding.
View Factory →Fiber laser cutting, CNC press brakes, TIG/MIG welding cells, stamping and in-house powder coating. Enclosures, brackets and chassis from 1 to 10,000 pcs.
View Factory →How it works
You do not need to be a sourcing expert to order from China. We keep the process simple and in plain English.
Upload your 3D CAD and drawings. Tell us material, quantity and finish.
Receive a clear price and free DFM feedback within 24 hours.
Your parts are produced in our Dongguan factory with QC at every stage.
Inspected, packed and shipped worldwide via DHL, FedEx, UPS or sea.
Industries we serve
From a single medical prototype to 100,000 automotive brackets, we adapt our service to your industry standards and quality needs.
Quality & trust
Every factory claims "good quality". We back it up with documented checks at three stages: incoming material (IQC), in-process (IPQC), and outgoing (OQC). For tight-tolerance parts we use CMM (Coordinate Measuring Machine) inspection and can supply First Article Inspection (FAI) reports.
We respect your IP too. All customer files are kept strictly confidential. NDAs are signed whenever you need one.
What clients say
"We spent months burned by two other China suppliers. YiguProto was the first team that actually answered technical questions before we paid. Parts came in on spec, on time. They are our go-to manufacturer now."
"Fast quotes, clean parts, and communication that actually solves problems. Their DFM feedback saved us from a tooling mistake that would have cost thousands. Highly recommended for any serious product team."
"We moved our low-volume production run from a local shop to YiguProto. Same quality, half the cost, and they handled the shipping door-to-door. The CMM reports for every batch made our QA team happy."
FAQ