library cart,book cart ,V cart 1.library book cart,V cart 2.cold-rolled steel 3.factory direct price 4. ... can not knock down library cart,book cart ,V cart 1).high quality cold-rolled steel plate, undergone phosphorizationa ... ).imported static electricity powder coated,no smell,environmental protection;3)."V" shaped,with 4 wheels at underneath4).thickness 0.4--1.0mm ...