Leak proof container bag: load weight is generally500-2000Kg,safety factor is3:1 to 8:1,and has the advantages of light weight.flexible, high strength, acidand alkali resistance, moisture- proof, anti aging,not leakage performance andstrong safety, convenient features, Can be widely used in metal mineral, chemical,food, feed,starch,cement, coal powder or granular materials packaging, can alsobe used for two or three kinds of dangerous goods packaging.