供应PVC热收缩膜 PE热收缩膜 POF热收缩膜 PE托盘缠绕膜
项目(Item)单位(Unit)机用Mechanical手用Manual厚度ThicknessUm根据客户的要求比重Specitic Weighg/cm30.9160.916拉伸强度Tensile-strength纵Vertical Mpa横Horizotal Mpa25↑18↑25↑19↑断裂伸长度Elongation atbreak纵Vertica%横Horizotal%400↑700↑400↑700↑直角撕裂强度Rectangle tearign strength纵Vertica kn/m横Horizotal kn/m700↑700↑80↑700↑粘着力Adhesion forceKpa10↑9↑透光率Luminousness%90↑90↑水蒸气透过率Streamg/m.m.24h20↑20↑