The same Chinese OEM iPhone case design is being sold under at least two product names, in two versions: PDair's Aluminum Metal Case - Flip Type ($28) and Wireless Ground's Monaco Aluminum Case ($40) are the exact same product, featuring a cheaply padded two-piece interior aluminum shell that includes a detachable plastic belt clip and a lanyard necklace. You can get this case from each company with or without an integrated hard plastic screen protector…