... installation 3.Installed stably and durably by using shelf,baffle Mobile shelving,book shelving,base shelf: Specification:(mm)H2300*W900*D550Column:1.2mmPartition: ... accuracy roller chain and beaning,flexible and easy.5.Side shelf is installed with locks for locking the whole bay. ... and sell all kinds of high -grade file cabinet,shelf,base cabinet,safe deposit box and so on. mobile book shelving