A multilayer sheet harmless to human beings, having a certain gas-barrier property, and comprising an easily-produced metal film layer and a packaging material made of the multilayer sheet.
多层片对人体无害，具有一定的气体阻隔性，并包括一个易于制作的金属薄膜层和包装材料的多层片材的。
The paper packaging products are widely used in packaging industry. The making requirements for multi-layer material of packaging are extremely strict and high.
纸质包装制品是应用日趋广泛的一种包装材料，生产中对多层基材包装制品的制作要求也越来越严格，难度愈来愈高。
A laminated packaging material is composed of a thermoplastic material outermost layer, a paper base material layer, a conductive barrier layer and a heat sealing innermost layer.
解决问题的方法：一种叠层包转材料由热塑性材料最外层、纸基材料层、导电阻挡层和热封最内层构成。
The packaging layer packages the half-ring shaped magnetic material of the second part into an integral body.
所述的第二部分的磁材为半环形状，所述的封装层将磁材封装成一个整体；
The packaging layer packages the half-ring shaped magnetic material of the second part into an integral body.
所述的第二部分的磁材为半环形状，所述的封装层将磁材封装成一个整体；
应用推荐