Wire drawing
Wire drawing can be made into straight lines, random lines, threads, ripples and spiral lines...
Wire drawing can be made into straight lines, random lines, threads, ripples and spiral lines...
1)What is surface treatment? Surface treatment: change the shape, chemical composition and organizational structure of...
Aluminum oxide (coloring) Aluminum and aluminum alloys are more and more widely used because they...
Sand blasting is widely used on metal surfaces The purpose is to overcome and cover...