(1) Chemical polishing and mechanical polishing are essentially different"Chemical polishing" is a process in which the small convex portions on the surface to be polished are compared with the concave portions so that the convex portions are preferentially dissolved to improve the roughness of the

1. Reasonable selection of materials.For precision messy molds, micro-deformed mold steel of good quality should be selected. For mold steel with serious carbide segregation, reasonable casting and quenching and tempering heat treatment should be carried out. For larger and unsuitable mold steel, so

1. Precautions for use①Precautions mean that when purchasing thick-walled steel pipes, customers must be clear about the material of their steel pipes and the length of each steel pipe because this involves the number of machined parts and unnecessary waste.②Then there are the detailed dimensions of

Stainless steel pipe, a material with high corrosion resistance and aesthetics, is like the king of metals and is widely used in various fields around the world. With the booming global economy and people's unremitting pursuit of high-quality materials, the sales of overseas stainless steel pipes ha