incision
Molding to form various required three-dimensional components, such as ventilation pipes in buildings,
Various large-scale pipeline elbows in the factory
Large to small joint
Square variable circular joint
cyclone scrubber
Auto repair plastic repair, all kinds of civil white iron products.
Sheet metal workers need to have a deep knowledge of mathematics in their work.
geometry
metal
weld
incision
appropriate
Riveting and other knowledge.