Sheet Metal Fabrication

Sheet metal processing is a kind of processing technology relative to metal sheets, including bending, punching, stretching, welding, splicing, forming, etc. Its obvious feature is that the same parts have the same thickness. And it has the characteristics of light weight, high precision, good rigidity, flexible structure and beautiful appearance. GPM provides sheet metal processing services and has an experienced and skilled team that can provide you with one-stop services from DFM design optimization, manufacturing to assembly. products cover various types of chassis, cabinets, lockers, display racks, etc., and are widely used in electronic equipment, communications, medical, scientific research and other fields.

laser cutting

Laser Cutting







Processing Machine

The processing technology of sheet metal during manufacturing is related to product quality. For this reason, it is necessary to use contemporary cutting-edge processing equipment and advanced technology to complete various technological tasks in an orderly manner. You will get high-quality products and high-quality service experience,by choosing our sheet metal processing services,

Processing Machine
Name of machine QTY(set)
High Power Laser Cutting Machine 3
Automatic deburring machine 2
CNC bending machine 7
CNC shearing machine 1
Argon welding machine 5
Robot welder 2
Automatic straight seam welding machine 1
Hydraulic punch press 250T 1
Automatic feeding rivet machine 6
Tapping machine 3
Drill press machine 3
Roller machine 2
Total 36 


Sheet metal processing can use a variety of materials, which can be selected according to application scenarios and requirements. The following are some common sheet metal processing materials 

Aluminum alloy

Aluminum alloy

A1050,A1060,A1070,A5052, A7075etc.

Stainless steel

Stainless steel


Copper alloy

Carton steel


Carton steel

Copper alloy




The surface treatment of sheet metal processing can be selected according to the actual needs to meet the needs of different application scenarios.

PlatingGalvanized, gold Plating, nickel plating, chrome plating, zinc nickel alloy, titanium plating, Ion plating , etc.
AnodizedHard oxidation ,clear anodized, color anodized , etc.
CoatingHydrophilic coating、hydrophobic coating、vacuum coating、diamond like carbon(DLC)、PVD (golden TiN, black:TiC, silver:CrN)
PolishingMechanical polishing, electrolytic polishing, chemical polishing and nano polishing
Other custom processing and finishes on request.


There are many kinds of sheet metal production processes, including cutting, punching / cutting / compounding, folding, welding, riveting, splicing, forming, etc. Sheet metal products are widely used in various industries and fields. The manufacturing of sheet metal products should be combined with product application, environment and other factors, and fully consider the rationality of cost, shape, material selection, structure, process and other aspects.

Sheet metal products have the characteristics of light weight, high strength, good conductivity, low cost and good batch production performance. It is widely used in electronics, communications, automotive industry, medical equipment and other fields including but not limited to :

Electrical enclosure


Quality Assurance

Quality control is an important part of achieving high-quality precision sheet metal processing products. By adopting various quality management systems and testing equipment, GPM ensures the stability and reliability of the process flow and product quality. From the procurement of raw materials, the control of the processing process to the inspection of the finished products after processing, strict quality control and monitoring are needed.

Feature Tolerance
Edge to edge, single surface +/- 0.127 mm
Edge to hole, single surface +/- 0.127 mm
Hole to hole, single surface +/- 0.127 mm
Bend to edge i hole, single surface +/- 0.254 mm
Edge to feature, multiple surface +/- 0.254 mm
Over formed part, multiple surface +/- 0.762 mm 
Bend angle +/- 1 degree