A pair of tenants have signed leases at 500 W. 53rd Place in Denver – bringing the 112,509-square-foot industrial facility to full occupancy. Threewit Cooper-Cement Co., a Denver-based masonry building product supplier, leased 25,208 sf and Hajoca Corp., the nation’s largest, privately held wholesale distributor of plumbing, heating, cooling and industrial supplies, leased 39,202 sf.