There are two general kinds of steels: _ steel and _ steel.A．carbon, alloy;B．high-speed, carbon;C．low carbon, high carbon;D．alloy, stainless
There are two general kinds of steels: _ steel and _ steel.
A、carbon, alloy;
B、high-speed, carbon;
C、low carbon, high carbon;
D、alloy, stainless
发布时间：2026-02-23 10:57:58
