少妇荡乳情欲办公室456视频-全免费a敌肛交毛片免费-熟妇人妻无码中文字幕老熟妇-免费人成视频x8x8入口

Focus on environmental protection and devote to pollution prevention

Provide reliable and safe product for
the electronic industries

Technical support
 
Figure 1 (a) and (b).The significant difference between compound morphology at
the interface of the traditional Sn-Cu/Cu and that of SC-Co-Ni-(p)/Cu
(a)Sn-0.7Cu              (b)SC-Co-Ni-P
Figure 2 The morphology of IMC after ahing at 250℃ for 24h
Figure 3. The results of the creep resistance test at the joint of Sn-0.7Cu
and SC-Co-Ni-P respectively after high temperature aging at 150℃ for 24h
Figure 4. The wettability test results of the two kinds of alloys on the surface of copper.

>> 1 2 >>

津ICP備05011517號-1 Copyright © 2010 Cooper ZhongyaSolder,Inc All Rights