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2022-02-28
1. Function and Characteristics Nickel plating is used as the substrate coating for precious metals and base metals on PCB (the abbreviation of Printed Circuie Board […]
2022-02-26
Two-stage hot-baking hardening type plug ink, its hardening process can be divided into two stages, the first stage of hardening is pre-backing, and the degree of […]
2022-02-26
The main investment of roller scraping and filling is the special machine for plugging. Its construction method is different from that of screen printing plugging. Its […]
2022-02-26
The term plug hole is not a new term in the printed circuit board industry. In the early etching process of the outer layer circuit, in […]
