Development trend and direction of metal surface treatment in Dalian:
Dalian metal surface treatment technology is a broad, profound and practical basic technology, as well as a newly emerging frontier discipline. Surface technology originated in ancient times, but only since the beginning of this century, with the extensive research on natural phenomena and the rapid development of industry and science and technology, has a series of improvements, combinations, and innovations been made to traditional surface technology, resulting in a large number of modern surface technologies.