... liner, lamination * SF: 5:1 * transportation and storage * safety, durable, practical pp super sacks with heave duty, safety, convenient, ... packagingFactory:The raw material of the container bag is PP and PE. It is made through several steps: extruding ... following advantages: innocuity, insipidity, moistureproot, enduring acid and alkali, safety and fastness and convenient for handling. It is a kind of ...