Article Photos: M-D Building Products buys manufacturing firm

Aluminum strips are cooled before being cut to length at the MD Building Products plant on Wednesday, Jan. 2, 2013, in Oklahoma City, Okla. Photo by Chris Landsberger, The Oklahoman

Aluminum strips are cooled before being cut to length at the MD Building Products plant on Wednesday, Jan. 2, 2013, in Oklahoma City, Okla. Photo by Chris Landsberger, The Oklahoman