Copper rod (pipe) forming method (extrusion or continuous casting, without stretching) how to judge, and the copper surface usually after processing what?
Copper rod (pipe) forming method of extrusion casting or casting: general after extrusion, extrusion without it is easy to see that the crystalline; copper (tube) surface treatment method has no oxidation and passivation treatment.
Copper rod (pipe) forming method of extrusion casting or casting: general after extrusion, extrusion without it is easy to see that the crystalline; copper (tube) surface treatment method has no oxidation and passivation treatment.
Copper rod (pipe) forming method of extrusion casting or casting: general after extrusion, extrusion without it is easy to see that the crystalline; copper (tube) surface treatment method has no oxidation and passivation treatment.
