Chinese material
Chinese material
(OP)
I need to know how to get the equivalent standard or at least what type of steel is it, for the following chinese strange material (used for making Moulds and mandrals for metal works):
1. K18
2. 45#
3. 4340
4. 2520
5. 2014
???
1. K18
2. 45#
3. 4340
4. 2520
5. 2014
???





RE: Chinese material