... Years Bookrack Manufactuer b) NSF Certified Modern Metal Book Shelf Rack _BookcaseNSF Certified Factory & 12 Years Shelving Experiences. Item ... structure3) Heavy duty loading capacities ; Each shelf can load 150lbs4) With shelf dividers and wall panels for book storage5) ... rack,kitchen rack,shoe rack,dish rack,wine shelf,wine rack, tier rack, commercial shelving , clothes rack,clothes hanger,closet ...