ਰੋਜ਼ਾਨਾ ਪੁਰਾਲੇਖ: ਅਕਤੂਬਰ 8, 2019

We are aware of that surface roughness means a lot in manufacturing industry. When the concept is recalled to your mind, there must be some common textures on machined parts, such as bright mirror surface, matte, and dull polish. They…