How to manufacture screws?

How to manufacture screws? Yuhuang Electronics Technology Co., Ltd. use high precision equipment processing precision cold forging model, to ensure the products with high precision! How to manufacture screws? Inspection equipment Projector, In-outside micrometer, Digital caliper, Threading gauge, Depth gauge, Pin gauge, Tool microscope, Tool microscope, Image measuring instrument. Functional test equipments Cross plug gauge, Salt-fog [...]