specification:
bag type: squre type, circular, or U-panel ,
bag size :90x90x100,90x90x120, or as requested 
loading weight : 500-3000kgs
safety factor:5:1,6:1
color: white, beige, or other color as required 
top of bag: filling spout , top skirt , conical 
bottom of bag: flat bottom , discharge spout ,