
Now, ChangZenghas received much attention because of its famous steel coil. ChangZeng's steel tubing series include multiple types. This product is electrically safe. The demands placed on glow wire resistance of the plastics used for insulating or mounting live components have been increased. Its heat treatment includes annealed, quenched, tempered, etc. ChangZenghas first-class production equipment and a large number of outstanding production staff. Heat treatment yields a higher wear resistance in this type of steel.

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