1、 What steel is stainless steel? Stainless stee…
Common heavy metal elements, among which Pb, Hg, …
During production, the following measures can be …
The electrolyte used for anodic oxidation of alum…
Cold shut means that two or more strands of liqui…
According to the content of alloy elements, alumi…
Copper rod is the main raw material of cable indu…
Pure copper (Cu) is red or purplish red, and copp…
Classification, characteristics, cutting process …
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