Металл цутгах дулааны боловсруулалтын процесс
The heat-treating method is one of the essential steps of both хөрөнгө оруулалт болон элс цутгах. Based on the different requirements, Dawang performs specific heat treatment processes. A perfect heat-treating process ensures the steel's strength, durability, and flexibility. ... үйл явц. Хөрөнгө ...