ዓላማ-በቧንቧ እቃዎች ውስጥ ጥቅም ላይ የሚውሉ ብዙ የብረት እና የመዳብ ጋኖች
Tool steel refers to a variety of carbon and alloy steels that are particularly well-suited to be made into tools. ... die-casting die blocks, ...Water-hardening group·