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The package contained 24 sample slides of various substances including nitrocellulose film on copper mesh , copper foil , stainless steel , silver coated plastic , lucite , and titanium coated glass . ABSTRACT - An inexpensive method for constructing hanging storage racks uses common iron plumbing pipe , stainless steel hose clamps , welded wire fencing , and aluminum-magnesium alloy fittings . From aluminum , stainless steel , copper , lead , and zinc to new metals and finishes such as titanium , pewter-coated copper , and colored stainless steel , it describes everything architects , engineers , and design professionals need to know about all the common and many uncommon metals at their disposal . The company is both an importer and exporter of a wide range of products including : copper , brass , aluminum , stainless steel , lead , zinc and nickel scrap that meet ISRI specifications . These 20-foot tall , stainless steel , structures mark thirteen intersections where city streets historically met the riverfront .