高清自拍亚洲精品二区丨亚洲综合制服丝袜另类丨又湿又紧又大又爽a视频国产丨国产真实乱子伦清晰对白丨人妻少妇久久精品公交车

●?Nickel-plastic foil

Replace the aluminum layer with nickel on traditional alumiunum –plastic foil, and nickel layer exposed on edge; Features:
?The nikel layer is thinner than aluminum layer;
?Good puncture resistance;
?Good corrosion resistancde;
The exposed nickel layer on the edge is welded by laser in the case of traditional plastic heat sealing,so it will never liquid leakage.
Obtain advantages of both hard shell and pouch battery.