“drawn steel”造句，怎麼用drawn steel造句

When the fuel for the heating furnace of Beiman Special Steel Corporation was changed from gas to oil, severe carbonization happened on the surface of cold-drawn steel.

The five characteristics of cold-drawn steel industry status are expounded. The countermeasures of industrial readjustment of cold-drawn industry is put forward from six aspects.

The hi precision cold drawn steel tube is a perfect kind of material for making of various cylinder cases.

The effect of various annealing systems on the splitting of cold-drawn steel rod is very little.

Quality requirment of the tension rate method for the cold drawn steel bar