Dayao (Dongguan Kunteng Hardware Technology Co., Ltd, part of Dayao Group) is a CNC machining company and manufacturer in China, founded in 2014 in Chang’an, Dongguan. It makes custom machined parts, sheet metal parts and finished OEM / ODM products in its own factory, and buyers deal with that factory directly.
A factory full of humanity, where buyers anywhere in the world deal directly with the people who make their parts.
Dayao is a CNC machining company and manufacturer in China that runs its own factory: Dongguan Kunteng Hardware Technology Co., Ltd, part of Dayao Group, founded in 2014 in Chang’an Town, Dongguan. Today the factory has 700+ machines for CNC milling, CNC turning, 5-axis machining and sheet metal work, plus finishing, assembly and packaging. Buyers deal with the factory directly, not with a trading company.
Dayao was founded in 2014 in Chang’an Town, Dongguan, a manufacturing town in the Pearl River Delta next to Shenzhen. 创始人姓名、创办原因、关键转折（如：何时从零件加工扩展到成品 OEM、为什么）待补
From the start, the team has followed one simple policy: a customer-oriented policy of continuous improvement, giving every customer professional, cost-effective service, from a single prototype to a full production run.
Many CNC companies that sell online are traders who pass drawings on to someone else’s shop. Dayao is different: it is a CNC manufacturing company with its own machines, so every quote comes straight from the people who make your parts.
Today the same factory machines parts, fabricates sheet metal, finishes, assembles and packs finished products. Its hand coffee grinder line alone assembles 2,000 units a day.
“We are a factory full of humanity.”
待放图创始人 / 管理团队真实合影（工厂门口或车间，横图 3:2，自然光，不用 AI 图）Dongguan Kunteng Hardware Technology Co., Ltd is founded in 2014 in Chang’an Town, Dongguan, Guangdong, as part of Dayao Group.
Dayao adds 5-axis machining centers, which cut complex parts from five sides in one setup instead of several. 若 2014 年起就有请注明
Dayao brings laser cutting, bending, welding, stamping and hardware insertion in-house, so enclosures and brackets are made in the same factory.
Dayao starts assembling finished products for brands; its hand coffee grinder line now assembles 2,000 units a day.
In 2026 the Dayao factory runs 700+ machines and makes custom parts and finished OEM / ODM products for overseas buyers.
Source: Dayao factory data (2026); company policy and team quote from Dayao’s former company website.
Dayao’s vision is to be a factory full of humanity that buyers around the world can work with directly. Its mission is to keep improving and give every customer professional, cost-effective service, from a single prototype to a full production run. Four values guide daily work, and each one is tied to a practice a buyer can check, such as engineer-reviewed quotes and IQC, IPQC and OQC inspection.
A factory full of humanity, where buyers anywhere in the world deal directly with the people who make their parts.
To keep improving, and to give every customer professional, cost-effective service, from a single prototype to a full production run.
Dayao follows a customer-oriented policy of continuous improvement: every order is a chance to make the next one better.
Every order passes IQC (incoming), IPQC (in-process) and OQC (outgoing) checks, and critical features are measured on a CMM to ±0.005 mm.
Dayao prices each job from the real work it needs, so buyers pay for the part and not for guesswork.
An engineer reviews every drawing before pricing, and the quote lists unit price, tooling, finish and lead time on separate lines. There are no instant or automatic quotes.
Dayao is a factory, not a sourcing agent, so every quote comes straight from the people who make your parts.
Buyers talk to Dayao’s own team, can check the company before ordering, and can sign an NDA before sharing any files.
Dayao’s own team calls it “a factory full of humanity”, and the company protects the legitimate rights and interests of every employee.
Employee rights are written company policy, and buyers who visit can meet the people who make their parts. 员工权益具体做法待补：如社保、工时、培训、住宿
Source: Wording from Dayao’s former company website; practices from Dayao factory data (2026).
Buyers who work with Dayao can reach six practical goals: parts that match the drawing, one supplier from part to finished product, a smooth path from one prototype to production, consistent batches, a protected design and a clear landed cost. Each goal rests on a fact a buyer can check, such as ±0.01 mm standard tolerance, CMM inspection, no fixed minimum order for parts and an NDA signed before files are shared.
Dayao gets parts right by reading the drawing before pricing it: an engineer checks tolerances, threads and materials and asks about anything unclear.
Dayao machines, fabricates, finishes, assembles and packs in one factory, so a buyer does not have to coordinate separate part and assembly suppliers.
Dayao makes a single prototype and the later production run on the same machines, and a sample is approved before mass production starts.
Dayao checks each batch at three points, so a dimension that starts to drift is caught during production, not after the parts arrive.
Dayao can sign a non-disclosure agreement (NDA) with a buyer before the buyer sends drawings, 3D models or product ideas.
Dayao quotes each cost on its own line and names the Incoterms® 2020 rule, so a buyer can work out the full cost to their door.
Source: Dayao factory data (2026); Incoterms® 2020, International Chamber of Commerce (ICC); CMM performance per ISO 10360-2.
Dayao solves six problems that overseas buyers often meet when sourcing custom parts from China: slow answers, traders who hide the real factory, too many suppliers, quality that drifts between batches, unclear quotes and fear of design leaks. Each fix is a fixed practice at Dayao, for example an engineer review of every drawing, IQC, IPQC and OQC checks on every order, and an NDA before you send files.
Replies take days, and the salesperson cannot answer questions about tolerances, threads or materials.
At Dayao, an engineer reads every drawing and answers technical questions before the price is written, and one English-speaking contact follows the order to shipment.
ProofEngineer review on every drawing · Mon–Fri, 8:30 AM – 6:00 PM China time (GMT+8) 英文对接人及响应时间待确认（如：工作日 X 小时内回复）
What happens after you askThe supplier turns out to be a middleman, so prices carry a margin and nobody can say who is really making the parts.
Dayao is the factory itself: Dongguan Kunteng Hardware Technology Co., Ltd, with 700+ machines in Chang’an, Dongguan. Buyers can check the business register, call the factory or ask for a live video tour.
ProofBusiness register: gsxt.gov.cn · Phone +86 158 8956 4225
How to verify DayaoMachined parts, sheet metal, finishing and assembly come from different shops, and the buyer has to manage all of them.
Dayao does CNC machining, 5-axis machining, sheet metal, surface finishing, assembly and packaging in one factory, so one supplier is responsible from part to product.
ProofHand coffee grinder line: 2,000 units assembled a day
Product OEM / ODMThe first batch looks good, then later batches slowly move out of tolerance or the finish changes.
Dayao checks every order at IQC, IPQC and OQC, measures critical features on a CMM, and keeps the approved sample as the reference for later batches.
Proof±0.01 mm standard · ±0.005 mm critical features · CMM
See the quality checksA low unit price grows later with tooling, finishing or shipping charges that were never shown in the quote.
Dayao’s quote is written by an engineer and lists unit price, any one-off tooling, the finish and the lead time on separate lines, with the Incoterms® 2020 rule named.
ProofNo instant or automatic quotes · FOB, EXW, CIF or DDP
Get an itemized quoteBuyers worry that drawings sent for a quote will be shared or copied before an order is even placed.
Dayao can sign a non-disclosure agreement (NDA) before a buyer sends any drawings, 3D models or product ideas, so the files are covered from the first email.
ProofNDA on request, before files are shared
Request an NDASource: Dayao factory data (2026); National Enterprise Credit Information Publicity System, State Administration for Market Regulation of China (gsxt.gov.cn).
Dayao works with four kinds of buyers: overseas brand owners who need more production capacity, product startups and crowdfunding founders who have a design but no factory, engineers and procurement teams who buy custom parts to a drawing, and distributors or e-commerce sellers who sell private label products. What they share is a need for custom metal parts or finished products made directly by a factory.
Brand owners use Dayao as extra production capacity when their current supplier is full or too small. The factory’s 700+ machines, assembly and packaging can take over parts or complete products.
Founders with a design but no factory can start with one prototype, approve a sample, then move to production with the same team, under an NDA from the first file.
Engineers send a 3D model or 2D drawing and get custom machined or sheet metal parts, held to ±0.01 mm as standard and ±0.005 mm on critical features.
Sellers who want their own brand on a proven product use Dayao to make, assemble and pack it, as the factory already does for hand coffee grinders.
Source: Dayao factory data (2026); buyer types from Dayao’s own business description.
Four customer reviews of Dayao, quoted word for word below, mention clear communication, on-time delivery, product quality and attention to detail. One buyer also describes a problem: a misunderstanding about surface finish quality on the first run, which Dayao put right on the second run. Reviewer names are shown as given, and no review has been edited or shortened. 待补：评价来源（阿里巴巴店铺链接或截图）
First I want to say the communication was top notch, very, very good. They working continuously to satisfy my dimensional requirements. There was a miscommunication on the surface finish quality the first run, but they came through like professionals on the second run and the parts came out beautiful! I won’t hesitate to work with them again.
KunTeng is a pleasure to work with. Always on time and great service.
Excellent quality and attention to detail. Always satisfied with the end products.
This manufacturer is really good quality and works well, will buy again.
Source: Customer reviews as published on Dayao’s former company website, quoted word for word.
Dayao’s trade terms are simple: machined and sheet metal parts have no fixed minimum order, payment can be made by T/T, L/C, D/P or Western Union, and goods ship on FOB, EXW, CIF or DDP terms under Incoterms® 2020. An NDA can be signed before you share files, and price, delivery date and payment terms are confirmed in writing in a contract or purchase order.
Dayao has no fixed minimum for machined and sheet metal parts, so a single prototype is fine. For OEM products the minimum depends on the tooling. OEM 起订量待核实
Dayao accepts T/T bank transfer, L/C (letter of credit), D/P (documents against payment) and Western Union. The payment term is written in the contract or purchase order.
Dayao ships on four Incoterms® 2020 rules. EXW: you collect at the factory. FOB: Dayao loads the goods onto the ship in China. CIF: Dayao also pays freight and insurance to your port. DDP: Dayao delivers to your door with duties paid.
Dayao can sign a non-disclosure agreement (NDA) before you share drawings, 3D models or product ideas. Ask for it in the quote form or by email.
When you accept a Dayao quote, the price, delivery date and payment terms are confirmed in a contract or purchase order. New parts and products get a sample you approve before mass production.
Dayao’s lead time depends on the part, the process and the quantity, so it is written in each quote instead of a fixed number of days promised in advance.
Source: Incoterms® 2020, International Chamber of Commerce (ICC), iccwbo.org; Dayao factory data (2026).
Buyers who are new to Dayao usually ask whether it is a real factory, how long it has been in business, what it makes, whether there is a minimum order, which terms it accepts and how to reach the team. In short: Dayao is a factory founded in 2014 in Chang’an, Dongguan, with 700+ machines, no fixed minimum order for parts and an NDA on request.
Dayao is a factory, not a trading company. Dongguan Kunteng Hardware Technology Co., Ltd (Dayao Group) has run its own factory in Chang’an, Dongguan since 2014, with 700+ machines for CNC machining, 5-axis machining, sheet metal, finishing and assembly. Every quote is written after an engineer at the factory reviews your drawing.
Dayao was founded in 2014 in Chang’an Town, Dongguan, Guangdong, China. The company is Dongguan Kunteng Hardware Technology Co., Ltd, part of Dayao Group.
Dayao makes custom CNC machined parts (milling, turning and 5-axis), sheet metal parts (laser cutting, bending, welding, stamping and hardware insertion) and finished OEM / ODM products with surface finishing, assembly and packaging. Its hand coffee grinder line assembles 2,000 units a day.
Dayao has no fixed minimum order for machined and sheet metal parts, so a single prototype is fine. For finished OEM products, the minimum depends on the tooling the product needs. OEM 起订量待核实
Yes. Dayao can sign a non-disclosure agreement (NDA) before you share drawings, 3D models or product ideas. You can ask for one in the quote form.
Dayao accepts T/T, L/C, D/P and Western Union, and ships on FOB, EXW, CIF or DDP terms under Incoterms® 2020. The terms for each order are written in the contract or purchase order.
Yes. Buyers can visit the factory in Chang’an, Dongguan, ask for a live video tour, or check the company on China’s business register. The step-by-step checks are on the Our Factory page.
Dayao works on China Standard Time (GMT+8), Monday to Friday, 8:30 AM – 6:00 PM. Most projects run by email in English, with phone or video calls when needed; the phone number is +86 158 8956 4225.
Reviewed by the Dayao engineering team · Updated October 2026
There are three ways to start with Dayao: see the factory first on the Our Factory page, send a drawing for an engineer-reviewed quote, or bring a product idea for OEM or ODM manufacturing. An NDA can be signed before you share any files, and the team answers Monday to Friday, 8:30 AM – 6:00 PM China time (GMT+8).
Walk through Dayao’s workshops, machines and quality checks, and learn how to book a visit or a live video tour.
Our factory → 02 · I have a drawingSend a 3D model or 2D drawing; an engineer reviews it and replies with an itemized quote.
Get a quote → 03 · I have a product ideaTurn a sketch, sample or reference product into a finished product made, assembled and packed by Dayao.
Explore OEM & ODM →Call or WhatsApp +86 158 8956 4225 · Chat on WhatsApp
I will reply within 24 hours.