polyester trolley backpack model No.:LGB-0816 size:30*23*46cm color:red,black,etc.AL trolley material:polyester 1680D polyester trolley ... of luggage, trolley bags, travel case, suitcase, notebook bag, laptop case, computer case, instrument case ,tool bag, camera bag, ... m2, construction area of 10000 m2, 2500 m2 of green land. First - class production equipment and perfect quality assurance ...