国产久免费热视频在线观看,伊人色综合网一区二区三区,亚洲va欧美va人人爽,美女裸体爆乳免费网站

theory：
Aluminum foil bag has three functions of resistance of the static, electromagnetic interference and moisture

application：
Mainly used in various PC board, IC 、CD-ROM、hardpan、electron component packaging

standard：
Produced strictly as per MIL-STD-2073-1、ASTM F 1249-2005、GB/T 10004-1998、MIL-B-81705-C standard

material：

PET function: puncture resistance force          
AL function: dampproof, electric conduction、shielding    
PA function: vacuum supply 
PE function: anti-static、sealing (included ESD requirement)

parameter：