亚洲视频国产精品_国产精品福利网站|HD中文字幕在线播放,一代女皇一级艳史,日韩一级片免费看,同桌让我腿扒开摸到高潮

SZSE:002741
Surface Finishing
Information
Application:

New-generation selective OSP refers to the product in particular designed for PCB surface coating and adapted to high-temperature lead-free assembly process, applies to full-copper board and copper-gold mixed board, with no film deposition on gold surface, and highly applies to the production of high-density and fine-spacing PCB.

Advantage introduction:

Excellent tin adhesion performance;
Excellent tin climb performance for DIMM through hole;
Good selectivity, no deposition while the gold thickness is relative thin;
Good compatibility for flux;
Good solution stability.
 
 
 

Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1