High Quality PP Big Bag for Sand, Cement.Our FIBC/PP woven sack/PP big bag/cement bag/sand bag/pp woven bag/jumbo container bags specification  are, 1)the character are dust-proof, moisture-proof, bear the radiation, safety and substance.2)Enough intensity on structure, convenient to load and discharge, suit mechanical load and unload.3)Widely used in chemical industry, cement, corn, mineral products and other powdery, granular and massive goods 'packing.4)The safe weight loading (swl)is from 0.5-3ton, with a cubage from 500-2300L. The safe factor can be designed to 3: 1, 5: 1, 6: 1 according to the customers requirements.5)With the type of tubular and square structure. With single spout or filling and discharging spout. Various specifications for one time and rotative use bags to meet different needs.6)Moisture-proof container bags with PE liner or lamination fabric.7)Marks such as logos and names of the goods can be printed on the bags on clients' requests.