Made from the first rate raw material, processed by the special equipment and new technology, mainly used for wire cutting.

Characteristics are as followings:
1. High tensile resistance, about 12% higher than the GB4182-1997 standard, not easy to be broken under the same condition.
2. Weak extending, no more than 3%, uneasy to elongate, the stability and size exactness can be improved.
3. High stability, high exactness and long-term durability.
4. Vacuum packing, long term storage and quality unchangeable.