The Company has introduced home advanced wire drawing equipment, enamelling equipment and whole set enamelled wire testing equipment with annual output of various enamelled wire over 3000 tons.

This paper discussed the casting technique of the winding barrel used on metallurgical crane of 140 ton capacity for lifting and transferring spout ladle or ingots etc.

By the middle of the century, packets had increased in size between 909 and 1 000 tons, and their speed had increased.