Is it hard to heat the fasteners?
Heat treatment mainly refers to the dipped fire. Dip the fire is not dipped into the water, is the oil. So the quality of oil, dipped in the temperature of the fire, dipped in the fire time are demanding Moreover, some special requirements need to double the fire, the difficulty is indeed great. In addition, heat treatment often take into account the requirements of the next step surface treatment, so have to consider
Fasteners are also known as standard parts, which are mainly heat-treated according to the material of the product.
Fasteners are a kind of standard parts, and their requirements are often higher than other standard parts, but heat treatment is better
