Character istics:
1. It helps adjust the contents of easily-oxidized elements and trace elements, improve the collecting rate of the alloy, decrease the cost, shorten the time, and make the composition accurately.
2. It helps purify the steel molten, change the nature and shape of the impurity, improving the quality of steel molten and the casting.
3. The thread has two kinds of types: the inside putted and the outside putted.
Packing quality of the thread: firm, no leakage, no chink, no broken, and