HuaZheng is the go-to manufacturer for high-quality prototypes and end-use machined parts, whether simple or complex. We own 700+ CNC machines, offering milling, turning, routing, EDM machining, drilling, and precision grinding. Our ISO 9001 certification andexpertise guarantee precision every time.
Huazheng provides injection molding services and has injection molding equipment. Injection molding is a plastics processing technique that is primarily used to produce plastic products. It is a method of injecting molten plastic into a mold, which is then cooled and solidified to create plastic products. The method is suitable for mass production of plastic parts of various shapes and sizes. Injection molding has the advantages of high productivity, precise product dimensions and good repeatability, and is therefore widely used in various industries such as automotive, electronics, home appliances, medical and packaging. With state-of-the-art injection molding machines as well as corresponding molds and auxiliary equipment, TurnkeyModel can support your project and provide a range of services from mold design and manufacturing to injection molding, surface treatment, and ultimately the production of a plastic product that meets the customer's requirements.

Ensure that the processed sheet metal parts are accurate in size and shape to ensure smooth subsequent assembly and use.
Ensure that the surface quality of the parts is excellent and there are no obvious scratches, bumps and other defects to meet the appearance and functional requirements of the product.
Use efficient processing equipment and techniques to improve production efficiency to meet customer delivery times and production needs.
Establish a strict quality control system to ensure the stable quality of each processing link and avoid batch quality problems.
In order to guarantee the accuracy of the parts and to maintain consistent quality, we generally default to dimensional tolerances for sheet metal parts in accordance with the ISO2768-M standard as below.
| Feature | Bend angle | Bend to edge | Edge to edge | Edge to hole | Hole to hole | Hole Diameter | Standard surfaces |
|---|---|---|---|---|---|---|---|
| Tolerance | ±0.5° | ±0.2mm | ±0.2mm | ±0.1mm | ±0.1mm | ±0.05mm | Deburring |
The thickness and thickness tolerance of the sheet will directly affect its manufacturability of the sheet. Below you can find some common sheets in the Chinese market, if they do not meet your expectations, please contact us.
| Material | Thickness/mm | Thickness tolerance |
| Aluminum | 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9,1.0, 1.2, 1.5, 1.6, 2.0, 2.3, 2.5, 3.0, 3.2, 3.5, 4.0, 5.0, 6.0, 8.0, 10.0, 12.0, 15.0, 20.0 | In general, the tolerance is ±0.1mm for material thickness of less than 3mm. For material thickness of 3-6mm, the tolerance is ±0.15mm. For material thickness greater than 6mm, the tolerance is ±0.5mm. |
| Steel | 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.8, 0.9, 1.0, 1.2, 1.5, 1.6, 2.0, 2.3, 2.5, 3.0, 3.2, 4.0, 5.0, 6.0, 8.0, 10.0, 12.0, 16.0, 18.0, 20.0, 25.0 | In general, the tolerance is ±0.1mm for material thickness of less than 3mm. For material thickness of 3-6mm, the tolerance is ±0.15mm. For material thickness greater than 6mm, the tolerance is ±0.5mm. |
| Stainless Steel | 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.8, 0.9, 1.0, 1.2, 1.5, 1.6, 2.0, 2.3, 2.5, 3.0, 3.2, 4.0, 5.0, 6.0, 8.0, 10.0, 12.0, 16.0, 18.0, 20.0, 25.0 | In general, the tolerance is ±0.1mm for material thickness of less than 3mm. For material thickness of 3-6mm, the tolerance is ±0.15mm. For material thickness greater than 6mm, the tolerance is ±0.5mm. |
| Copper/Brass | 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.8, 0.9, 1.0, 1.2, 1.5, 1.6, 2.0, 2.3, 2.5, 3.0, 3.2, 4.0, 5.0, 6.0, 8.0, 10.0, 12.0, 16.0, 18.0, 20.0, 25.0 | In general, the tolerance is ±0.1mm for material thickness of less than 3mm. For material thickness of 3-6mm, the tolerance is ±0.15mm. For material thickness greater than 6mm, the tolerance is ±0.5mm. |

I had many projects with TurnkeyModel and all of them were perfect. They really supported us a lot, sometimes the lead time is urgent, they can also make it more than we expected. The parts are just awesome, and I will have more projects with them.

Senior Marketert


What impressed us most was how quickly your team turned around our custom brackets without compromising precision. Every detail matched our drawings. Great communication too!

Senior Marketert


Your sheet metal work has been a huge asset to our product development. From laser cutting to final finish, everything was delivered on time and exactly to spec. Highly dependable!

Senior Marketert

The thickness of the painting is 20-180μm while the powder coating is 50-200μm. With thicker film, powder coating can protect the pieces better and prolong the service life. Painting always has a more smooth and glossy surface. There is little price difference between painting and powder coating for normal color. If you want to custom paint or powder coating color, RAL or Pantone code is needed.
Sure! Every piece in TurnkeyModel will be perfectly grinding after the welding process to make sure the welding area is flat and smooth. This is not only for our requirement, but also for further finish actions. After grinding and finishing, it is hardly possible to find the welding trace.
HuaZheng is able to offer cutting, bending, punching, welding, and even riveting. With our own sheet metal factory, we can ensure the lead time and start with 1 piece. There are also many finish options for sheet metal that you can get from TurnkeyModel. Assembly service is also available from HuaZheng.
Based on our current capabilities, the max size we can handle is 3 meters long. However, for such a size part, normally we will suggest doing the shipment by sea as the cost will be greatly high if shipped by air.
Our max bending capability is 3000mm, if your design is within our limit, we can handle it. As to specially designed projects (too long or too thin), we will use suitable protective material, for example, board, wooden stick, tape, foaming materials, and others to make sure the parts are in good condition.
There are some points important for our quotation, for example, quantity, design, structure, material, and finish. All the factors mentioned above will more or less influence the cost. For one piece, we will still go through the whole process, just like more pieces. So, on average the total cost, and price for one piece will be higher than for bigger quantities.
Because of the structure of sheet metal, the parts are always light in weight but heavy in volume weight. It will take lots of money to ship if the size is too big. Normally we suggest you ship large sheet metal parts by sea to lower the cost, however, the shipping time will be longer.
Our default finish for sheet metal is as cut, but normally we will do some debur actions here to prevent hurting the edges since they are very shaped after cutting.
Raw materials are loaded into the injection molding machine, heated and melted
An injection machine injects molten plastic into the mold cavity
After cooling, open the mold and take out the finished product
Check the quality and remove possible defects
Repeat the production cycle
This efficient processing is suitable for manufacturing a wide range of plastic parts

With our management system, can allocate a real engineer in a few minutes, and you can get your quotation andprofessional design advice in as littleas one hour.
providing professional advice and DfM feedback that helps optimize your designand save costs.

With our management system, can allocate a real engineer in a few minutes, and you can get your quotation andprofessional design advice in as littleas one hour.
providing professional advice and DfM feedback that helps optimize your designand save costs.

With our management system, can allocate a real engineer in a few minutes, and you can get your quotation andprofessional design advice in as littleas one hour.
providing professional advice and DfM feedback that helps optimize your designand save costs.

With our management system, can allocate a real engineer in a few minutes, and you can get your quotation andprofessional design advice in as littleas one hour.
providing professional advice and DfM feedback that helps optimize your designand save costs.
Model Number: Carbon Steel
thicknesses: 0.1
Thickness Tolerance: 0.03
Bend: All can be bent
Thicknesses: 0.1
Thickness Tolerance: 0.02
Bend: All can be bent.
Material Specifications: 0.3*C, 0.4*C, 0.5*600*1500, 0.6*600*1500, 0.8*600*1500, 1.0*600*1500, 1.2*600*1500, 1.5*600*1500, 1.8*600*1500, 2.0*600*1500, 2.5*600*1500, 3.0*600*1500, 3.2*600*1500, 3.5*600*1500, 4.0*600*1500, 5.0*600*1500, 6.0*600*1500
Model Number: SUS303
Thicknesses: 0.1
Thickness Tolerance: 0.03
Bend: All can be bent.
Model Number: AL6061
thicknesses: 0.1
Thickness Tolerance: 0.02
Bend: Don't bend it. It will break.
Material Specifications: 1.0*1220*2440, 1.2*1220*2440, 1.5*1220*2440, 1.6*1220*2440, 2.0*1220*2440, 2.5*1220*2440, 3.0*1220*2440, 3.5*1220*2440, 4.0*1220*2440
We can support “Design-> Manufacture- >Assembly”one-stop delivery,Save communication time & cost,No need to find other partners for different processes
DFM report will help you
optimize design if necessary, it will
be helpful to lower budget andshorten lead time
Ensured quality
Self-inspection
Mutual inspection
Professional Inspection
Project engineer will confirm all details including standards with you.
Free DFM report will be sent to help lower manufacturing risk and cost as well.
Photos from every step will be uploaded timely.
Strict quality control processes will be taken in HuaZheng to ensure the quality.
The tracking No. will be sent to your portal.
Our sheet metal fabrication service provides custom, high-precision components for various industries, focusing on quality, durability, and reliable performance.





